16733b39aSJayamohan Kallickal /** 26733b39aSJayamohan Kallickal * Copyright (C) 2005 - 2009 ServerEngines 36733b39aSJayamohan Kallickal * All rights reserved. 46733b39aSJayamohan Kallickal * 56733b39aSJayamohan Kallickal * This program is free software; you can redistribute it and/or 66733b39aSJayamohan Kallickal * modify it under the terms of the GNU General Public License version 2 76733b39aSJayamohan Kallickal * as published by the Free Software Foundation. The full GNU General 86733b39aSJayamohan Kallickal * Public License is included in this distribution in the file called COPYING. 96733b39aSJayamohan Kallickal * 106733b39aSJayamohan Kallickal * Written by: Jayamohan Kallickal (jayamohank@serverengines.com) 116733b39aSJayamohan Kallickal * 126733b39aSJayamohan Kallickal * Contact Information: 136733b39aSJayamohan Kallickal * linux-drivers@serverengines.com 146733b39aSJayamohan Kallickal * 156733b39aSJayamohan Kallickal * ServerEngines 166733b39aSJayamohan Kallickal * 209 N. Fair Oaks Ave 176733b39aSJayamohan Kallickal * Sunnyvale, CA 94085 186733b39aSJayamohan Kallickal * 196733b39aSJayamohan Kallickal */ 206733b39aSJayamohan Kallickal #include <linux/reboot.h> 216733b39aSJayamohan Kallickal #include <linux/delay.h> 226733b39aSJayamohan Kallickal #include <linux/interrupt.h> 236733b39aSJayamohan Kallickal #include <linux/blkdev.h> 246733b39aSJayamohan Kallickal #include <linux/pci.h> 256733b39aSJayamohan Kallickal #include <linux/string.h> 266733b39aSJayamohan Kallickal #include <linux/kernel.h> 276733b39aSJayamohan Kallickal #include <linux/semaphore.h> 286733b39aSJayamohan Kallickal 296733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 306733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 316733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 326733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 336733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 346733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 356733b39aSJayamohan Kallickal #include <scsi/scsi.h> 366733b39aSJayamohan Kallickal #include "be_main.h" 376733b39aSJayamohan Kallickal #include "be_iscsi.h" 386733b39aSJayamohan Kallickal #include "be_mgmt.h" 396733b39aSJayamohan Kallickal 406733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 416733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 426733b39aSJayamohan Kallickal static unsigned int enable_msix; 436733b39aSJayamohan Kallickal 446733b39aSJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 456733b39aSJayamohan Kallickal MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR); 466733b39aSJayamohan Kallickal MODULE_AUTHOR("ServerEngines Corporation"); 476733b39aSJayamohan Kallickal MODULE_LICENSE("GPL"); 486733b39aSJayamohan Kallickal module_param(be_iopoll_budget, int, 0); 496733b39aSJayamohan Kallickal module_param(enable_msix, int, 0); 506733b39aSJayamohan Kallickal module_param(be_max_phys_size, uint, S_IRUGO); 516733b39aSJayamohan Kallickal MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically" 526733b39aSJayamohan Kallickal "contiguous memory that can be allocated." 536733b39aSJayamohan Kallickal "Range is 16 - 128"); 546733b39aSJayamohan Kallickal 556733b39aSJayamohan Kallickal static int beiscsi_slave_configure(struct scsi_device *sdev) 566733b39aSJayamohan Kallickal { 576733b39aSJayamohan Kallickal blk_queue_max_segment_size(sdev->request_queue, 65536); 586733b39aSJayamohan Kallickal return 0; 596733b39aSJayamohan Kallickal } 606733b39aSJayamohan Kallickal 616733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 626733b39aSJayamohan Kallickal .module = THIS_MODULE, 636733b39aSJayamohan Kallickal .name = "ServerEngines 10Gbe open-iscsi Initiator Driver", 646733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 656733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 666733b39aSJayamohan Kallickal .eh_abort_handler = iscsi_eh_abort, 676733b39aSJayamohan Kallickal .change_queue_depth = iscsi_change_queue_depth, 686733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 696733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 706733b39aSJayamohan Kallickal .eh_device_reset_handler = iscsi_eh_device_reset, 716733b39aSJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_target_reset, 726733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 736733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 746733b39aSJayamohan Kallickal .this_id = -1, 756733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 766733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 776733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 786733b39aSJayamohan Kallickal }; 796733b39aSJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 806733b39aSJayamohan Kallickal 816733b39aSJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 826733b39aSJayamohan Kallickal static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = { 836733b39aSJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 846733b39aSJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 856733b39aSJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 866733b39aSJayamohan Kallickal { 0 } 876733b39aSJayamohan Kallickal }; 886733b39aSJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 896733b39aSJayamohan Kallickal 906733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 916733b39aSJayamohan Kallickal { 926733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 936733b39aSJayamohan Kallickal struct Scsi_Host *shost; 946733b39aSJayamohan Kallickal 956733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 966733b39aSJayamohan Kallickal if (!shost) { 976733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_hba_alloc -" 986733b39aSJayamohan Kallickal "iscsi_host_alloc failed \n"); 996733b39aSJayamohan Kallickal return NULL; 1006733b39aSJayamohan Kallickal } 1016733b39aSJayamohan Kallickal shost->dma_boundary = pcidev->dma_mask; 1026733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 1036733b39aSJayamohan Kallickal shost->max_channel = 0; 1046733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 1056733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 1066733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 1076733b39aSJayamohan Kallickal 1086733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 1096733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 1106733b39aSJayamohan Kallickal phba->shost = shost; 1116733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 1126733b39aSJayamohan Kallickal 1136733b39aSJayamohan Kallickal if (iscsi_host_add(shost, &phba->pcidev->dev)) 1146733b39aSJayamohan Kallickal goto free_devices; 1156733b39aSJayamohan Kallickal return phba; 1166733b39aSJayamohan Kallickal 1176733b39aSJayamohan Kallickal free_devices: 1186733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 1196733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 1206733b39aSJayamohan Kallickal return NULL; 1216733b39aSJayamohan Kallickal } 1226733b39aSJayamohan Kallickal 1236733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 1246733b39aSJayamohan Kallickal { 1256733b39aSJayamohan Kallickal if (phba->csr_va) { 1266733b39aSJayamohan Kallickal iounmap(phba->csr_va); 1276733b39aSJayamohan Kallickal phba->csr_va = NULL; 1286733b39aSJayamohan Kallickal } 1296733b39aSJayamohan Kallickal if (phba->db_va) { 1306733b39aSJayamohan Kallickal iounmap(phba->db_va); 1316733b39aSJayamohan Kallickal phba->db_va = NULL; 1326733b39aSJayamohan Kallickal } 1336733b39aSJayamohan Kallickal if (phba->pci_va) { 1346733b39aSJayamohan Kallickal iounmap(phba->pci_va); 1356733b39aSJayamohan Kallickal phba->pci_va = NULL; 1366733b39aSJayamohan Kallickal } 1376733b39aSJayamohan Kallickal } 1386733b39aSJayamohan Kallickal 1396733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 1406733b39aSJayamohan Kallickal struct pci_dev *pcidev) 1416733b39aSJayamohan Kallickal { 1426733b39aSJayamohan Kallickal u8 __iomem *addr; 1436733b39aSJayamohan Kallickal 1446733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 1456733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 1466733b39aSJayamohan Kallickal if (addr == NULL) 1476733b39aSJayamohan Kallickal return -ENOMEM; 1486733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 1496733b39aSJayamohan Kallickal phba->csr_va = addr; 1506733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 1516733b39aSJayamohan Kallickal 1526733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 1536733b39aSJayamohan Kallickal if (addr == NULL) 1546733b39aSJayamohan Kallickal goto pci_map_err; 1556733b39aSJayamohan Kallickal phba->ctrl.db = addr; 1566733b39aSJayamohan Kallickal phba->db_va = addr; 1576733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 1586733b39aSJayamohan Kallickal 1596733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 1), 1606733b39aSJayamohan Kallickal pci_resource_len(pcidev, 1)); 1616733b39aSJayamohan Kallickal if (addr == NULL) 1626733b39aSJayamohan Kallickal goto pci_map_err; 1636733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 1646733b39aSJayamohan Kallickal phba->pci_va = addr; 1656733b39aSJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, 1); 1666733b39aSJayamohan Kallickal return 0; 1676733b39aSJayamohan Kallickal 1686733b39aSJayamohan Kallickal pci_map_err: 1696733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 1706733b39aSJayamohan Kallickal return -ENOMEM; 1716733b39aSJayamohan Kallickal } 1726733b39aSJayamohan Kallickal 1736733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 1746733b39aSJayamohan Kallickal { 1756733b39aSJayamohan Kallickal int ret; 1766733b39aSJayamohan Kallickal 1776733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 1786733b39aSJayamohan Kallickal if (ret) { 1796733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device " 1806733b39aSJayamohan Kallickal "failed. Returning -ENODEV\n"); 1816733b39aSJayamohan Kallickal return ret; 1826733b39aSJayamohan Kallickal } 1836733b39aSJayamohan Kallickal 1846733b39aSJayamohan Kallickal if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) { 1856733b39aSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); 1866733b39aSJayamohan Kallickal if (ret) { 1876733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 1886733b39aSJayamohan Kallickal pci_disable_device(pcidev); 1896733b39aSJayamohan Kallickal return ret; 1906733b39aSJayamohan Kallickal } 1916733b39aSJayamohan Kallickal } 1926733b39aSJayamohan Kallickal return 0; 1936733b39aSJayamohan Kallickal } 1946733b39aSJayamohan Kallickal 1956733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 1966733b39aSJayamohan Kallickal { 1976733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 1986733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 1996733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 2006733b39aSJayamohan Kallickal int status = 0; 2016733b39aSJayamohan Kallickal 2026733b39aSJayamohan Kallickal ctrl->pdev = pdev; 2036733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 2046733b39aSJayamohan Kallickal if (status) 2056733b39aSJayamohan Kallickal return status; 2066733b39aSJayamohan Kallickal 2076733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 2086733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 2096733b39aSJayamohan Kallickal mbox_mem_alloc->size, 2106733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 2116733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 2126733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 2136733b39aSJayamohan Kallickal status = -ENOMEM; 2146733b39aSJayamohan Kallickal return status; 2156733b39aSJayamohan Kallickal } 2166733b39aSJayamohan Kallickal 2176733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 2186733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 2196733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 2206733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 2216733b39aSJayamohan Kallickal spin_lock_init(&ctrl->mbox_lock); 2226733b39aSJayamohan Kallickal return status; 2236733b39aSJayamohan Kallickal } 2246733b39aSJayamohan Kallickal 2256733b39aSJayamohan Kallickal static void beiscsi_get_params(struct beiscsi_hba *phba) 2266733b39aSJayamohan Kallickal { 2276733b39aSJayamohan Kallickal phba->params.ios_per_ctrl = BE2_IO_DEPTH; 2286733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl = BE2_MAX_SESSIONS; 2296733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl = BE2_ASYNCPDUS; 2306733b39aSJayamohan Kallickal phba->params.icds_per_ctrl = BE2_MAX_ICDS / 2; 2316733b39aSJayamohan Kallickal phba->params.num_sge_per_io = BE2_SGE; 2326733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; 2336733b39aSJayamohan Kallickal phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ; 2346733b39aSJayamohan Kallickal phba->params.eq_timer = 64; 2356733b39aSJayamohan Kallickal phba->params.num_eq_entries = 2366733b39aSJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) / 2376733b39aSJayamohan Kallickal 512) + 1) * 512; 2386733b39aSJayamohan Kallickal phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024) 2396733b39aSJayamohan Kallickal ? 1024 : phba->params.num_eq_entries; 2406733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d \n", 2416733b39aSJayamohan Kallickal phba->params.num_eq_entries); 2426733b39aSJayamohan Kallickal phba->params.num_cq_entries = 2436733b39aSJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) / 2446733b39aSJayamohan Kallickal 512) + 1) * 512; 2456733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 2466733b39aSJayamohan Kallickal "phba->params.num_cq_entries=%d BE2_CMDS_PER_CXN=%d" 2476733b39aSJayamohan Kallickal "BE2_LOGOUTS=%d BE2_TMFS=%d BE2_ASYNCPDUS=%d \n", 2486733b39aSJayamohan Kallickal phba->params.num_cq_entries, BE2_CMDS_PER_CXN, 2496733b39aSJayamohan Kallickal BE2_LOGOUTS, BE2_TMFS, BE2_ASYNCPDUS); 2506733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn = 256; 2516733b39aSJayamohan Kallickal } 2526733b39aSJayamohan Kallickal 2536733b39aSJayamohan Kallickal static void hwi_ring_eq_db(struct beiscsi_hba *phba, 2546733b39aSJayamohan Kallickal unsigned int id, unsigned int clr_interrupt, 2556733b39aSJayamohan Kallickal unsigned int num_processed, 2566733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 2576733b39aSJayamohan Kallickal { 2586733b39aSJayamohan Kallickal u32 val = 0; 2596733b39aSJayamohan Kallickal val |= id & DB_EQ_RING_ID_MASK; 2606733b39aSJayamohan Kallickal if (rearm) 2616733b39aSJayamohan Kallickal val |= 1 << DB_EQ_REARM_SHIFT; 2626733b39aSJayamohan Kallickal if (clr_interrupt) 2636733b39aSJayamohan Kallickal val |= 1 << DB_EQ_CLR_SHIFT; 2646733b39aSJayamohan Kallickal if (event) 2656733b39aSJayamohan Kallickal val |= 1 << DB_EQ_EVNT_SHIFT; 2666733b39aSJayamohan Kallickal val |= num_processed << DB_EQ_NUM_POPPED_SHIFT; 2676733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_EQ_OFFSET); 2686733b39aSJayamohan Kallickal } 2696733b39aSJayamohan Kallickal 2706733b39aSJayamohan Kallickal /** 2716733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 2726733b39aSJayamohan Kallickal * @irq: Not used 2736733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 2746733b39aSJayamohan Kallickal */ 2756733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 2766733b39aSJayamohan Kallickal { 2776733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 2786733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 2796733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 2806733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 2816733b39aSJayamohan Kallickal struct be_queue_info *eq; 2826733b39aSJayamohan Kallickal struct be_queue_info *cq; 2836733b39aSJayamohan Kallickal unsigned long flags, index; 2846733b39aSJayamohan Kallickal unsigned int num_eq_processed; 2856733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 2866733b39aSJayamohan Kallickal int isr; 2876733b39aSJayamohan Kallickal 2886733b39aSJayamohan Kallickal phba = dev_id; 2896733b39aSJayamohan Kallickal if (!enable_msix) { 2906733b39aSJayamohan Kallickal ctrl = &phba->ctrl;; 2916733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 2926733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 2936733b39aSJayamohan Kallickal if (!isr) 2946733b39aSJayamohan Kallickal return IRQ_NONE; 2956733b39aSJayamohan Kallickal } 2966733b39aSJayamohan Kallickal 2976733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 2986733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 2996733b39aSJayamohan Kallickal eq = &phwi_context->be_eq.q; 3006733b39aSJayamohan Kallickal cq = &phwi_context->be_cq; 3016733b39aSJayamohan Kallickal index = 0; 3026733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3036733b39aSJayamohan Kallickal if (!eqe) 3046733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 3056733b39aSJayamohan Kallickal 3066733b39aSJayamohan Kallickal num_eq_processed = 0; 3076733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 3086733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 3096733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 3106733b39aSJayamohan Kallickal if (!blk_iopoll_sched_prep(&phba->iopoll)) 3116733b39aSJayamohan Kallickal blk_iopoll_sched(&phba->iopoll); 3126733b39aSJayamohan Kallickal 3136733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 3146733b39aSJayamohan Kallickal queue_tail_inc(eq); 3156733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3166733b39aSJayamohan Kallickal num_eq_processed++; 3176733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Valid EQE\n"); 3186733b39aSJayamohan Kallickal } 3196733b39aSJayamohan Kallickal if (num_eq_processed) { 3206733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 0, 1); 3216733b39aSJayamohan Kallickal return IRQ_HANDLED; 3226733b39aSJayamohan Kallickal } else 3236733b39aSJayamohan Kallickal return IRQ_NONE; 3246733b39aSJayamohan Kallickal } else { 3256733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 3266733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 3276733b39aSJayamohan Kallickal 3286733b39aSJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 3296733b39aSJayamohan Kallickal resource_id) / 32] & 3306733b39aSJayamohan Kallickal EQE_RESID_MASK) >> 16) != cq->id) { 3316733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 3326733b39aSJayamohan Kallickal phba->todo_mcc_cq = 1; 3336733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 3346733b39aSJayamohan Kallickal } else { 3356733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 3366733b39aSJayamohan Kallickal phba->todo_cq = 1; 3376733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 3386733b39aSJayamohan Kallickal } 3396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 3406733b39aSJayamohan Kallickal queue_tail_inc(eq); 3416733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3426733b39aSJayamohan Kallickal num_eq_processed++; 3436733b39aSJayamohan Kallickal } 3446733b39aSJayamohan Kallickal if (phba->todo_cq || phba->todo_mcc_cq) 3456733b39aSJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 3466733b39aSJayamohan Kallickal 3476733b39aSJayamohan Kallickal if (num_eq_processed) { 3486733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 1, 1); 3496733b39aSJayamohan Kallickal return IRQ_HANDLED; 3506733b39aSJayamohan Kallickal } else 3516733b39aSJayamohan Kallickal return IRQ_NONE; 3526733b39aSJayamohan Kallickal } 3536733b39aSJayamohan Kallickal } 3546733b39aSJayamohan Kallickal 3556733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 3566733b39aSJayamohan Kallickal { 3576733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 3586733b39aSJayamohan Kallickal int ret; 3596733b39aSJayamohan Kallickal 3606733b39aSJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, "beiscsi", phba); 3616733b39aSJayamohan Kallickal if (ret) { 3626733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 3636733b39aSJayamohan Kallickal "Failed to register irq\\n"); 3646733b39aSJayamohan Kallickal return ret; 3656733b39aSJayamohan Kallickal } 3666733b39aSJayamohan Kallickal return 0; 3676733b39aSJayamohan Kallickal } 3686733b39aSJayamohan Kallickal 3696733b39aSJayamohan Kallickal static void hwi_ring_cq_db(struct beiscsi_hba *phba, 3706733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 3716733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 3726733b39aSJayamohan Kallickal { 3736733b39aSJayamohan Kallickal u32 val = 0; 3746733b39aSJayamohan Kallickal val |= id & DB_CQ_RING_ID_MASK; 3756733b39aSJayamohan Kallickal if (rearm) 3766733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 3776733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 3786733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 3796733b39aSJayamohan Kallickal } 3806733b39aSJayamohan Kallickal 3816733b39aSJayamohan Kallickal /* 3826733b39aSJayamohan Kallickal * async pdus include 3836733b39aSJayamohan Kallickal * a. unsolicited NOP-In (target initiated NOP-In) 3846733b39aSJayamohan Kallickal * b. Async Messages 3856733b39aSJayamohan Kallickal * c. Reject PDU 3866733b39aSJayamohan Kallickal * d. Login response 3876733b39aSJayamohan Kallickal * These headers arrive unprocessed by the EP firmware and iSCSI layer 3886733b39aSJayamohan Kallickal * process them 3896733b39aSJayamohan Kallickal */ 3906733b39aSJayamohan Kallickal static unsigned int 3916733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 3926733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 3936733b39aSJayamohan Kallickal unsigned short cid, 3946733b39aSJayamohan Kallickal struct pdu_base *ppdu, 3956733b39aSJayamohan Kallickal unsigned long pdu_len, 3966733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 3976733b39aSJayamohan Kallickal { 3986733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 3996733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 4006733b39aSJayamohan Kallickal 4016733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 4026733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 4036733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 4046733b39aSJayamohan Kallickal pbuffer = NULL; 4056733b39aSJayamohan Kallickal buf_len = 0; 4066733b39aSJayamohan Kallickal break; 4076733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 4086733b39aSJayamohan Kallickal break; 4096733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 4106733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 4116733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 4126733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n"); 4136733b39aSJayamohan Kallickal break; 4146733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 4156733b39aSJayamohan Kallickal break; 4166733b39aSJayamohan Kallickal default: 4176733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 4186733b39aSJayamohan Kallickal "Unrecognized opcode 0x%x in async msg \n", 4196733b39aSJayamohan Kallickal (ppdu-> 4206733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 4216733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 4226733b39aSJayamohan Kallickal return 1; 4236733b39aSJayamohan Kallickal } 4246733b39aSJayamohan Kallickal 4256733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 4266733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 4276733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 4286733b39aSJayamohan Kallickal return 0; 4296733b39aSJayamohan Kallickal } 4306733b39aSJayamohan Kallickal 4316733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 4326733b39aSJayamohan Kallickal { 4336733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 4346733b39aSJayamohan Kallickal 4356733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 4366733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 4376733b39aSJayamohan Kallickal "In alloc_io_sgl_handle,io_sgl_alloc_index=%d \n", 4386733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 4396733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 4406733b39aSJayamohan Kallickal io_sgl_alloc_index]; 4416733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 4426733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 4436733b39aSJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params.ios_per_ctrl - 1)) 4446733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 4456733b39aSJayamohan Kallickal else 4466733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 4476733b39aSJayamohan Kallickal } else 4486733b39aSJayamohan Kallickal psgl_handle = NULL; 4496733b39aSJayamohan Kallickal return psgl_handle; 4506733b39aSJayamohan Kallickal } 4516733b39aSJayamohan Kallickal 4526733b39aSJayamohan Kallickal static void 4536733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 4546733b39aSJayamohan Kallickal { 4556733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d \n", 4566733b39aSJayamohan Kallickal phba->io_sgl_free_index); 4576733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 4586733b39aSJayamohan Kallickal /* 4596733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 4606733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 4616733b39aSJayamohan Kallickal */ 4626733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 4636733b39aSJayamohan Kallickal "Double Free in IO SGL io_sgl_free_index=%d," 4646733b39aSJayamohan Kallickal "value there=%p \n", phba->io_sgl_free_index, 4656733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index]); 4666733b39aSJayamohan Kallickal return; 4676733b39aSJayamohan Kallickal } 4686733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 4696733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 4706733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 4716733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 4726733b39aSJayamohan Kallickal else 4736733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 4746733b39aSJayamohan Kallickal } 4756733b39aSJayamohan Kallickal 4766733b39aSJayamohan Kallickal /** 4776733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 4786733b39aSJayamohan Kallickal * @phba: The hba pointer 4796733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 4806733b39aSJayamohan Kallickal * @index: index allocation and wrb index 4816733b39aSJayamohan Kallickal * 4826733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 4836733b39aSJayamohan Kallickal */ 4846733b39aSJayamohan Kallickal struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid, 4856733b39aSJayamohan Kallickal int index) 4866733b39aSJayamohan Kallickal { 4876733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 4886733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4896733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 4906733b39aSJayamohan Kallickal 4916733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4926733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cid]; 4936733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[index]; 4946733b39aSJayamohan Kallickal pwrb_handle->wrb_index = index; 4956733b39aSJayamohan Kallickal pwrb_handle->nxt_wrb_index = index; 4966733b39aSJayamohan Kallickal return pwrb_handle; 4976733b39aSJayamohan Kallickal } 4986733b39aSJayamohan Kallickal 4996733b39aSJayamohan Kallickal /** 5006733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 5016733b39aSJayamohan Kallickal * @phba: The hba pointer 5026733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 5036733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 5046733b39aSJayamohan Kallickal * 5056733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 5066733b39aSJayamohan Kallickal */ 5076733b39aSJayamohan Kallickal static void 5086733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 5096733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 5106733b39aSJayamohan Kallickal { 5116733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 5126733b39aSJayamohan Kallickal "FREE WRB: pwrb_handle=%p free_index=%d=0x%x" 5136733b39aSJayamohan Kallickal "wrb_handles_available=%d \n", 5146733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 5156733b39aSJayamohan Kallickal pwrb_context->free_index, pwrb_context->wrb_handles_available); 5166733b39aSJayamohan Kallickal } 5176733b39aSJayamohan Kallickal 5186733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 5196733b39aSJayamohan Kallickal { 5206733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 5216733b39aSJayamohan Kallickal 5226733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 5236733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 5246733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 5256733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x \n", 5266733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index); 5276733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 5286733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 5296733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 5306733b39aSJayamohan Kallickal 1)) 5316733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 5326733b39aSJayamohan Kallickal else 5336733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 5346733b39aSJayamohan Kallickal } else 5356733b39aSJayamohan Kallickal psgl_handle = NULL; 5366733b39aSJayamohan Kallickal return psgl_handle; 5376733b39aSJayamohan Kallickal } 5386733b39aSJayamohan Kallickal 5396733b39aSJayamohan Kallickal void 5406733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 5416733b39aSJayamohan Kallickal { 5426733b39aSJayamohan Kallickal 5436733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 5446733b39aSJayamohan Kallickal /* 5456733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 5466733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 5476733b39aSJayamohan Kallickal */ 5486733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 5496733b39aSJayamohan Kallickal "Double Free in eh SGL ,eh_sgl_free_index=%d \n", 5506733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 5516733b39aSJayamohan Kallickal return; 5526733b39aSJayamohan Kallickal } 5536733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 5546733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 5556733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 5566733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 5576733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 5586733b39aSJayamohan Kallickal else 5596733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 5606733b39aSJayamohan Kallickal } 5616733b39aSJayamohan Kallickal 5626733b39aSJayamohan Kallickal static void 5636733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 5646733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 5656733b39aSJayamohan Kallickal { 5666733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 5676733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 5686733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 5696733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 5706733b39aSJayamohan Kallickal unsigned int sense_len; 5716733b39aSJayamohan Kallickal unsigned char *sense; 5726733b39aSJayamohan Kallickal u32 resid = 0, exp_cmdsn, max_cmdsn; 5736733b39aSJayamohan Kallickal u8 rsp, status, flags; 5746733b39aSJayamohan Kallickal 5756733b39aSJayamohan Kallickal exp_cmdsn = be32_to_cpu(psol-> 5766733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 5776733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 5786733b39aSJayamohan Kallickal max_cmdsn = be32_to_cpu((psol-> 5796733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 5806733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 5816733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 5826733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 5836733b39aSJayamohan Kallickal rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32] 5846733b39aSJayamohan Kallickal & SOL_RESP_MASK) >> 16); 5856733b39aSJayamohan Kallickal status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32] 5866733b39aSJayamohan Kallickal & SOL_STS_MASK) >> 8); 5876733b39aSJayamohan Kallickal flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 5886733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 5896733b39aSJayamohan Kallickal 5906733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 5916733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 5926733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 5936733b39aSJayamohan Kallickal goto unmap; 5946733b39aSJayamohan Kallickal } 5956733b39aSJayamohan Kallickal 5966733b39aSJayamohan Kallickal /* bidi not initially supported */ 5976733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 5986733b39aSJayamohan Kallickal resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 5996733b39aSJayamohan Kallickal 32] & SOL_RES_CNT_MASK); 6006733b39aSJayamohan Kallickal 6016733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 6026733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 6036733b39aSJayamohan Kallickal 6046733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 6056733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 6066733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 6076733b39aSJayamohan Kallickal task->sc->underflow)) 6086733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 6096733b39aSJayamohan Kallickal } 6106733b39aSJayamohan Kallickal } 6116733b39aSJayamohan Kallickal 6126733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 6136733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 6146733b39aSJayamohan Kallickal sense_len = 6156733b39aSJayamohan Kallickal cpu_to_be16((unsigned short)(sts_bhs->sense_info[0])); 6166733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 6176733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 6186733b39aSJayamohan Kallickal } 6196733b39aSJayamohan Kallickal if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) { 6206733b39aSJayamohan Kallickal if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 6216733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK) 6226733b39aSJayamohan Kallickal conn->rxdata_octets += (psol-> 6236733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 6246733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK); 6256733b39aSJayamohan Kallickal } 6266733b39aSJayamohan Kallickal unmap: 6276733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 6286733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 6296733b39aSJayamohan Kallickal } 6306733b39aSJayamohan Kallickal 6316733b39aSJayamohan Kallickal static void 6326733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 6336733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 6346733b39aSJayamohan Kallickal { 6356733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 6366733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 6376733b39aSJayamohan Kallickal 6386733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 6396733b39aSJayamohan Kallickal hdr->t2wait = 5; 6406733b39aSJayamohan Kallickal hdr->t2retain = 0; 6416733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 6426733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 6436733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 6446733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 6456733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol-> 6466733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 6476733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 6486733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol-> 6496733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 6506733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 6516733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 6526733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 6536733b39aSJayamohan Kallickal hdr->hlength = 0; 6546733b39aSJayamohan Kallickal 6556733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 6566733b39aSJayamohan Kallickal } 6576733b39aSJayamohan Kallickal 6586733b39aSJayamohan Kallickal static void 6596733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 6606733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 6616733b39aSJayamohan Kallickal { 6626733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 6636733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 6646733b39aSJayamohan Kallickal 6656733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 6666733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 6676733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 6686733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 6696733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 6706733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 6716733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 6726733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 6736733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 6746733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 6756733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 6766733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 6776733b39aSJayamohan Kallickal } 6786733b39aSJayamohan Kallickal 6796733b39aSJayamohan Kallickal static void 6806733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 6816733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 6826733b39aSJayamohan Kallickal { 6836733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 6846733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 6856733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 6866733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 6876733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 6886733b39aSJayamohan Kallickal 6896733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 6906733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol-> 6916733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 6926733b39aSJayamohan Kallickal SOL_CID_MASK) >> 6)]; 6936733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 6946733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 6956733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 6966733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 6976733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, pwrb_handle); 6986733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 6996733b39aSJayamohan Kallickal } 7006733b39aSJayamohan Kallickal 7016733b39aSJayamohan Kallickal static void 7026733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 7036733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 7046733b39aSJayamohan Kallickal { 7056733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 7066733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 7076733b39aSJayamohan Kallickal 7086733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 7096733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 7106733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 7116733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 7126733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 7136733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 7146733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 7156733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 7166733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 7176733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 7186733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 7196733b39aSJayamohan Kallickal } 7206733b39aSJayamohan Kallickal 7216733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 7226733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 7236733b39aSJayamohan Kallickal { 7246733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 7256733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 7266733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 7276733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 7286733b39aSJayamohan Kallickal struct iscsi_task *task; 7296733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task; 7306733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 7316733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 7326733b39aSJayamohan Kallickal 7336733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 7346733b39aSJayamohan Kallickal 7356733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr-> 7366733b39aSJayamohan Kallickal wrb_context[((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32] 7376733b39aSJayamohan Kallickal & SOL_CID_MASK) >> 6)]; 7386733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 7396733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 7406733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 7416733b39aSJayamohan Kallickal 7426733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 7436733b39aSJayamohan Kallickal io_task = task->dd_data; 7446733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 7456733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 7466733b39aSJayamohan Kallickal switch ((pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] & 7476733b39aSJayamohan Kallickal WRB_TYPE_MASK) >> 28) { 7486733b39aSJayamohan Kallickal case HWH_TYPE_IO: 7496733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 7506733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 7516733b39aSJayamohan Kallickal ISCSI_OP_NOOP_OUT) { 7526733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 7536733b39aSJayamohan Kallickal } else 7546733b39aSJayamohan Kallickal be_complete_io(beiscsi_conn, task, psol); 7556733b39aSJayamohan Kallickal break; 7566733b39aSJayamohan Kallickal 7576733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 7586733b39aSJayamohan Kallickal be_complete_logout(beiscsi_conn, task, psol); 7596733b39aSJayamohan Kallickal break; 7606733b39aSJayamohan Kallickal 7616733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 7626733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 7636733b39aSJayamohan Kallickal "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd" 7646733b39aSJayamohan Kallickal "- Solicited path \n"); 7656733b39aSJayamohan Kallickal break; 7666733b39aSJayamohan Kallickal 7676733b39aSJayamohan Kallickal case HWH_TYPE_TMF: 7686733b39aSJayamohan Kallickal be_complete_tmf(beiscsi_conn, task, psol); 7696733b39aSJayamohan Kallickal break; 7706733b39aSJayamohan Kallickal 7716733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 7726733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 7736733b39aSJayamohan Kallickal break; 7746733b39aSJayamohan Kallickal 7756733b39aSJayamohan Kallickal default: 7766733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 7776733b39aSJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", 7786733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_iscsi_wrb, type) / 7796733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16), 7806733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32] 7816733b39aSJayamohan Kallickal & SOL_CID_MASK) >> 6)); 7826733b39aSJayamohan Kallickal break; 7836733b39aSJayamohan Kallickal } 7846733b39aSJayamohan Kallickal 7856733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 7866733b39aSJayamohan Kallickal } 7876733b39aSJayamohan Kallickal 7886733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 7896733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 7906733b39aSJayamohan Kallickal unsigned int host_write_ptr) 7916733b39aSJayamohan Kallickal { 7926733b39aSJayamohan Kallickal if (is_header) 7936733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 7946733b39aSJayamohan Kallickal header_busy_list; 7956733b39aSJayamohan Kallickal else 7966733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 7976733b39aSJayamohan Kallickal } 7986733b39aSJayamohan Kallickal 7996733b39aSJayamohan Kallickal static struct async_pdu_handle * 8006733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 8016733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 8026733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 8036733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 8046733b39aSJayamohan Kallickal { 8056733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 8066733b39aSJayamohan Kallickal struct list_head *pbusy_list; 8076733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 8086733b39aSJayamohan Kallickal int buffer_len = 0; 8096733b39aSJayamohan Kallickal unsigned char buffer_index = -1; 8106733b39aSJayamohan Kallickal unsigned char is_header = 0; 8116733b39aSJayamohan Kallickal 8126733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 8136733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] - 8146733b39aSJayamohan Kallickal ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 8156733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 8166733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 8176733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32]; 8186733b39aSJayamohan Kallickal 8196733b39aSJayamohan Kallickal phys_addr.u.a64.address = 8206733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 8216733b39aSJayamohan Kallickal 8226733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 8236733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 8246733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 8256733b39aSJayamohan Kallickal is_header = 1; 8266733b39aSJayamohan Kallickal 8276733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1, 8286733b39aSJayamohan Kallickal (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 8296733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 8306733b39aSJayamohan Kallickal 8316733b39aSJayamohan Kallickal buffer_len = (unsigned int)(phys_addr.u.a64.address - 8326733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address); 8336733b39aSJayamohan Kallickal 8346733b39aSJayamohan Kallickal buffer_index = buffer_len / 8356733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size; 8366733b39aSJayamohan Kallickal 8376733b39aSJayamohan Kallickal break; 8386733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 8396733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe-> 8406733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, 8416733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 8426733b39aSJayamohan Kallickal buffer_len = (unsigned long)(phys_addr.u.a64.address - 8436733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 8446733b39aSJayamohan Kallickal a64.address); 8456733b39aSJayamohan Kallickal buffer_index = buffer_len / pasync_ctx->async_data.buffer_size; 8466733b39aSJayamohan Kallickal break; 8476733b39aSJayamohan Kallickal default: 8486733b39aSJayamohan Kallickal pbusy_list = NULL; 8496733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 8506733b39aSJayamohan Kallickal "Unexpected code=%d \n", 8516733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 8526733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 8536733b39aSJayamohan Kallickal return NULL; 8546733b39aSJayamohan Kallickal } 8556733b39aSJayamohan Kallickal 8566733b39aSJayamohan Kallickal WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries)); 8576733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 8586733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 8596733b39aSJayamohan Kallickal WARN_ON(pasync_handle->consumed); 8606733b39aSJayamohan Kallickal if (pasync_handle->index == buffer_index) 8616733b39aSJayamohan Kallickal break; 8626733b39aSJayamohan Kallickal } 8636733b39aSJayamohan Kallickal 8646733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 8656733b39aSJayamohan Kallickal 8666733b39aSJayamohan Kallickal pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid; 8676733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 8686733b39aSJayamohan Kallickal pasync_handle->buffer_len = ((pdpdu_cqe-> 8696733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 8706733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 8716733b39aSJayamohan Kallickal 8726733b39aSJayamohan Kallickal *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 8736733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK); 8746733b39aSJayamohan Kallickal return pasync_handle; 8756733b39aSJayamohan Kallickal } 8766733b39aSJayamohan Kallickal 8776733b39aSJayamohan Kallickal static unsigned int 8786733b39aSJayamohan Kallickal hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx, 8796733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 8806733b39aSJayamohan Kallickal { 8816733b39aSJayamohan Kallickal struct list_head *pbusy_list; 8826733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 8836733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 8846733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 8856733b39aSJayamohan Kallickal 8866733b39aSJayamohan Kallickal 8876733b39aSJayamohan Kallickal if (is_header) { 8886733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 8896733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 8906733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 8916733b39aSJayamohan Kallickal } else { 8926733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 8936733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 8946733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 8956733b39aSJayamohan Kallickal } 8966733b39aSJayamohan Kallickal 8976733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 8986733b39aSJayamohan Kallickal (*pep_read_ptr)++; 8996733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 9006733b39aSJayamohan Kallickal 9016733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 9026733b39aSJayamohan Kallickal *pep_read_ptr); 9036733b39aSJayamohan Kallickal if (writables == 0) 9046733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 9056733b39aSJayamohan Kallickal 9066733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 9076733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 9086733b39aSJayamohan Kallickal struct async_pdu_handle, 9096733b39aSJayamohan Kallickal link); 9106733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 9116733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 9126733b39aSJayamohan Kallickal } 9136733b39aSJayamohan Kallickal 9146733b39aSJayamohan Kallickal writables++; 9156733b39aSJayamohan Kallickal } 9166733b39aSJayamohan Kallickal 9176733b39aSJayamohan Kallickal if (!writables) { 9186733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 9196733b39aSJayamohan Kallickal "Duplicate notification received - index 0x%x!!\n", 9206733b39aSJayamohan Kallickal cq_index); 9216733b39aSJayamohan Kallickal WARN_ON(1); 9226733b39aSJayamohan Kallickal } 9236733b39aSJayamohan Kallickal 9246733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 9256733b39aSJayamohan Kallickal return 0; 9266733b39aSJayamohan Kallickal } 9276733b39aSJayamohan Kallickal 9286733b39aSJayamohan Kallickal static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba, 9296733b39aSJayamohan Kallickal unsigned int cri) 9306733b39aSJayamohan Kallickal { 9316733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 9326733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 9336733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 9346733b39aSJayamohan Kallickal struct list_head *plist; 9356733b39aSJayamohan Kallickal unsigned int i = 0; 9366733b39aSJayamohan Kallickal 9376733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 9386733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 9396733b39aSJayamohan Kallickal 9406733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 9416733b39aSJayamohan Kallickal 9426733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 9436733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 9446733b39aSJayamohan Kallickal 9456733b39aSJayamohan Kallickal if (i == 0) { 9466733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 9476733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 9486733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 9496733b39aSJayamohan Kallickal i++; 9506733b39aSJayamohan Kallickal } else { 9516733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 9526733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 9536733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 9546733b39aSJayamohan Kallickal i++; 9556733b39aSJayamohan Kallickal } 9566733b39aSJayamohan Kallickal } 9576733b39aSJayamohan Kallickal 9586733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 9596733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 9606733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 9616733b39aSJayamohan Kallickal return 0; 9626733b39aSJayamohan Kallickal } 9636733b39aSJayamohan Kallickal 9646733b39aSJayamohan Kallickal static struct phys_addr * 9656733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 9666733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 9676733b39aSJayamohan Kallickal { 9686733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 9696733b39aSJayamohan Kallickal 9706733b39aSJayamohan Kallickal if (is_header) 9716733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 9726733b39aSJayamohan Kallickal else 9736733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 9746733b39aSJayamohan Kallickal 9756733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 9766733b39aSJayamohan Kallickal } 9776733b39aSJayamohan Kallickal 9786733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 9796733b39aSJayamohan Kallickal unsigned int is_header) 9806733b39aSJayamohan Kallickal { 9816733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 9826733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 9836733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 9846733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 9856733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 9866733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 9876733b39aSJayamohan Kallickal unsigned int host_write_num; 9886733b39aSJayamohan Kallickal unsigned int writables; 9896733b39aSJayamohan Kallickal unsigned int i = 0; 9906733b39aSJayamohan Kallickal u32 doorbell = 0; 9916733b39aSJayamohan Kallickal 9926733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 9936733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 9946733b39aSJayamohan Kallickal 9956733b39aSJayamohan Kallickal if (is_header) { 9966733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 9976733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 9986733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 9996733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 10006733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 10016733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr.id; 10026733b39aSJayamohan Kallickal } else { 10036733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 10046733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 10056733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 10066733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 10076733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 10086733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data.id; 10096733b39aSJayamohan Kallickal } 10106733b39aSJayamohan Kallickal 10116733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 10126733b39aSJayamohan Kallickal if (writables) { 10136733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 10146733b39aSJayamohan Kallickal pbusy_list = 10156733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 10166733b39aSJayamohan Kallickal host_write_num); 10176733b39aSJayamohan Kallickal pasync_handle = 10186733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 10196733b39aSJayamohan Kallickal link); 10206733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 10216733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 10226733b39aSJayamohan Kallickal 10236733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 10246733b39aSJayamohan Kallickal 10256733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 10266733b39aSJayamohan Kallickal is_header, host_write_num); 10276733b39aSJayamohan Kallickal 10286733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 10296733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 10306733b39aSJayamohan Kallickal 10316733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 10326733b39aSJayamohan Kallickal 10336733b39aSJayamohan Kallickal host_write_num++; 10346733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 10356733b39aSJayamohan Kallickal } 10366733b39aSJayamohan Kallickal 10376733b39aSJayamohan Kallickal if (is_header) { 10386733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 10396733b39aSJayamohan Kallickal host_write_num; 10406733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 10416733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 10426733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 10436733b39aSJayamohan Kallickal } else { 10446733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 10456733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 10466733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 10476733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 10486733b39aSJayamohan Kallickal } 10496733b39aSJayamohan Kallickal 10506733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 10516733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 10526733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 10536733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 10546733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 10556733b39aSJayamohan Kallickal 10566733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET); 10576733b39aSJayamohan Kallickal } 10586733b39aSJayamohan Kallickal } 10596733b39aSJayamohan Kallickal 10606733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 10616733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 10626733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 10636733b39aSJayamohan Kallickal { 10646733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 10656733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 10666733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 10676733b39aSJayamohan Kallickal unsigned int cq_index = -1; 10686733b39aSJayamohan Kallickal 10696733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 10706733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 10716733b39aSJayamohan Kallickal 10726733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 10736733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 10746733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 10756733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 10766733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 10776733b39aSJayamohan Kallickal cq_index); 10786733b39aSJayamohan Kallickal 10796733b39aSJayamohan Kallickal hwi_free_async_msg(phba, pasync_handle->cri); 10806733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 10816733b39aSJayamohan Kallickal } 10826733b39aSJayamohan Kallickal 10836733b39aSJayamohan Kallickal static unsigned int 10846733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 10856733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 10866733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 10876733b39aSJayamohan Kallickal { 10886733b39aSJayamohan Kallickal struct list_head *plist; 10896733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 10906733b39aSJayamohan Kallickal void *phdr = NULL; 10916733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 10926733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 10936733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 10946733b39aSJayamohan Kallickal unsigned int num_buf = 0; 10956733b39aSJayamohan Kallickal 10966733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 10976733b39aSJayamohan Kallickal 10986733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 10996733b39aSJayamohan Kallickal if (index == 0) { 11006733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 11016733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 11026733b39aSJayamohan Kallickal } else { 11036733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 11046733b39aSJayamohan Kallickal if (!num_buf) { 11056733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 11066733b39aSJayamohan Kallickal num_buf++; 11076733b39aSJayamohan Kallickal } 11086733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 11096733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 11106733b39aSJayamohan Kallickal offset = buf_len; 11116733b39aSJayamohan Kallickal } 11126733b39aSJayamohan Kallickal index++; 11136733b39aSJayamohan Kallickal } 11146733b39aSJayamohan Kallickal 11156733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 11166733b39aSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid, 11176733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 11186733b39aSJayamohan Kallickal buf_len); 11196733b39aSJayamohan Kallickal 11206733b39aSJayamohan Kallickal if (status == 0) 11216733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 11226733b39aSJayamohan Kallickal return 0; 11236733b39aSJayamohan Kallickal } 11246733b39aSJayamohan Kallickal 11256733b39aSJayamohan Kallickal static unsigned int 11266733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 11276733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 11286733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 11296733b39aSJayamohan Kallickal { 11306733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 11316733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 11326733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 11336733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 11346733b39aSJayamohan Kallickal struct pdu_base *ppdu; 11356733b39aSJayamohan Kallickal 11366733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 11376733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 11386733b39aSJayamohan Kallickal 11396733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 11406733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 11416733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 11426733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 11436733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 11446733b39aSJayamohan Kallickal BUG(); 11456733b39aSJayamohan Kallickal } 11466733b39aSJayamohan Kallickal 11476733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 11486733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 11496733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 11506733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 11516733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 11526733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 11536733b39aSJayamohan Kallickal 11546733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 11556733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 11566733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 11576733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 11586733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 11596733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 11606733b39aSJayamohan Kallickal 11616733b39aSJayamohan Kallickal if (status == 0) { 11626733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 11636733b39aSJayamohan Kallickal bytes_needed; 11646733b39aSJayamohan Kallickal 11656733b39aSJayamohan Kallickal if (bytes_needed == 0) 11666733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 11676733b39aSJayamohan Kallickal pasync_ctx, cri); 11686733b39aSJayamohan Kallickal } 11696733b39aSJayamohan Kallickal } else { 11706733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 11716733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 11726733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 11736733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 11746733b39aSJayamohan Kallickal list); 11756733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 11766733b39aSJayamohan Kallickal bytes_received += 11776733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 11786733b39aSJayamohan Kallickal 11796733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 11806733b39aSJayamohan Kallickal bytes_received >= 11816733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 11826733b39aSJayamohan Kallickal bytes_needed) 11836733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 11846733b39aSJayamohan Kallickal pasync_ctx, cri); 11856733b39aSJayamohan Kallickal } 11866733b39aSJayamohan Kallickal } 11876733b39aSJayamohan Kallickal return status; 11886733b39aSJayamohan Kallickal } 11896733b39aSJayamohan Kallickal 11906733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 11916733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 11926733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 11936733b39aSJayamohan Kallickal { 11946733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 11956733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 11966733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 11976733b39aSJayamohan Kallickal unsigned int cq_index = -1; 11986733b39aSJayamohan Kallickal 11996733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12006733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 12016733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 12026733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 12036733b39aSJayamohan Kallickal 12046733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 12056733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 12066733b39aSJayamohan Kallickal cq_index); 12076733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 12086733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 12096733b39aSJayamohan Kallickal } 12106733b39aSJayamohan Kallickal 12116733b39aSJayamohan Kallickal static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba) 12126733b39aSJayamohan Kallickal { 12136733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 12146733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 12156733b39aSJayamohan Kallickal struct be_queue_info *cq; 12166733b39aSJayamohan Kallickal struct sol_cqe *sol; 12176733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 12186733b39aSJayamohan Kallickal unsigned int num_processed = 0; 12196733b39aSJayamohan Kallickal unsigned int tot_nump = 0; 12206733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 12216733b39aSJayamohan Kallickal 12226733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12236733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 12246733b39aSJayamohan Kallickal cq = &phwi_context->be_cq; 12256733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 12266733b39aSJayamohan Kallickal 12276733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 12286733b39aSJayamohan Kallickal CQE_VALID_MASK) { 12296733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 12306733b39aSJayamohan Kallickal 12316733b39aSJayamohan Kallickal beiscsi_conn = phba->conn_table[(u32) (sol-> 12326733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 12336733b39aSJayamohan Kallickal SOL_CID_MASK) >> 6]; 12346733b39aSJayamohan Kallickal 12356733b39aSJayamohan Kallickal if (!beiscsi_conn || !beiscsi_conn->ep) { 12366733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 12376733b39aSJayamohan Kallickal "Connection table empty for cid = %d\n", 12386733b39aSJayamohan Kallickal (u32)(sol->dw[offsetof(struct amap_sol_cqe, 12396733b39aSJayamohan Kallickal cid) / 32] & SOL_CID_MASK) >> 6); 12406733b39aSJayamohan Kallickal return 0; 12416733b39aSJayamohan Kallickal } 12426733b39aSJayamohan Kallickal 12436733b39aSJayamohan Kallickal if (num_processed >= 32) { 12446733b39aSJayamohan Kallickal hwi_ring_cq_db(phba, phwi_context->be_cq.id, 12456733b39aSJayamohan Kallickal num_processed, 0, 0); 12466733b39aSJayamohan Kallickal tot_nump += num_processed; 12476733b39aSJayamohan Kallickal num_processed = 0; 12486733b39aSJayamohan Kallickal } 12496733b39aSJayamohan Kallickal 12506733b39aSJayamohan Kallickal switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) / 12516733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK) { 12526733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 12536733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 12546733b39aSJayamohan Kallickal break; 12556733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 12566733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY \n"); 12576733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 12586733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 12596733b39aSJayamohan Kallickal break; 12606733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 12616733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 12626733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR/DATA_NOTIFY\n"); 12636733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 12646733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 12656733b39aSJayamohan Kallickal break; 12666733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 12676733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 12686733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 12696733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 12706733b39aSJayamohan Kallickal "Ignoring CQ Error notification for cmd/cxn" 12716733b39aSJayamohan Kallickal "invalidate\n"); 12726733b39aSJayamohan Kallickal break; 12736733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 12746733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 12756733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 12766733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 12776733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 12786733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 12796733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 12806733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 12816733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 12826733b39aSJayamohan Kallickal "CQ Error notification for cmd.. " 12836733b39aSJayamohan Kallickal "code %d cid 0x%x\n", 12846733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 12856733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 12866733b39aSJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 12876733b39aSJayamohan Kallickal 32] & SOL_CID_MASK)); 12886733b39aSJayamohan Kallickal break; 12896733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 12906733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 12916733b39aSJayamohan Kallickal "Digest error on def pdu ring, dropping..\n"); 12926733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 12936733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 12946733b39aSJayamohan Kallickal break; 12956733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 12966733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 12976733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 12986733b39aSJayamohan Kallickal case CXN_KILLED_HDR_DIGEST_ERR: 12996733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 13006733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 13016733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 13026733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 13036733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 13046733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 13056733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 13066733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 13076733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 13086733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 13096733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, resetting CID " 13106733b39aSJayamohan Kallickal "0x%x...\n", 13116733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 13126733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 13136733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, cid) / 13146733b39aSJayamohan Kallickal 32] & CQE_CID_MASK); 13156733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 13166733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 13176733b39aSJayamohan Kallickal break; 13186733b39aSJayamohan Kallickal case CXN_KILLED_RST_SENT: 13196733b39aSJayamohan Kallickal case CXN_KILLED_RST_RCVD: 13206733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset received/sent " 13216733b39aSJayamohan Kallickal "on CID 0x%x...\n", 13226733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 13236733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 13246733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, cid) / 13256733b39aSJayamohan Kallickal 32] & CQE_CID_MASK); 13266733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 13276733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 13286733b39aSJayamohan Kallickal break; 13296733b39aSJayamohan Kallickal default: 13306733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d " 13316733b39aSJayamohan Kallickal "received on CID 0x%x...\n", 13326733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 13336733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 13346733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, cid) / 13356733b39aSJayamohan Kallickal 32] & CQE_CID_MASK); 13366733b39aSJayamohan Kallickal break; 13376733b39aSJayamohan Kallickal } 13386733b39aSJayamohan Kallickal 13396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 13406733b39aSJayamohan Kallickal queue_tail_inc(cq); 13416733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 13426733b39aSJayamohan Kallickal num_processed++; 13436733b39aSJayamohan Kallickal } 13446733b39aSJayamohan Kallickal 13456733b39aSJayamohan Kallickal if (num_processed > 0) { 13466733b39aSJayamohan Kallickal tot_nump += num_processed; 13476733b39aSJayamohan Kallickal hwi_ring_cq_db(phba, phwi_context->be_cq.id, num_processed, 13486733b39aSJayamohan Kallickal 1, 0); 13496733b39aSJayamohan Kallickal } 13506733b39aSJayamohan Kallickal return tot_nump; 13516733b39aSJayamohan Kallickal } 13526733b39aSJayamohan Kallickal 13536733b39aSJayamohan Kallickal static void beiscsi_process_all_cqs(struct work_struct *work) 13546733b39aSJayamohan Kallickal { 13556733b39aSJayamohan Kallickal unsigned long flags; 13566733b39aSJayamohan Kallickal struct beiscsi_hba *phba = 13576733b39aSJayamohan Kallickal container_of(work, struct beiscsi_hba, work_cqs); 13586733b39aSJayamohan Kallickal 13596733b39aSJayamohan Kallickal if (phba->todo_mcc_cq) { 13606733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 13616733b39aSJayamohan Kallickal phba->todo_mcc_cq = 0; 13626733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 13636733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "MCC Interrupt Not expected \n"); 13646733b39aSJayamohan Kallickal } 13656733b39aSJayamohan Kallickal 13666733b39aSJayamohan Kallickal if (phba->todo_cq) { 13676733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 13686733b39aSJayamohan Kallickal phba->todo_cq = 0; 13696733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 13706733b39aSJayamohan Kallickal beiscsi_process_cq(phba); 13716733b39aSJayamohan Kallickal } 13726733b39aSJayamohan Kallickal } 13736733b39aSJayamohan Kallickal 13746733b39aSJayamohan Kallickal static int be_iopoll(struct blk_iopoll *iop, int budget) 13756733b39aSJayamohan Kallickal { 13766733b39aSJayamohan Kallickal static unsigned int ret; 13776733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 13786733b39aSJayamohan Kallickal 13796733b39aSJayamohan Kallickal phba = container_of(iop, struct beiscsi_hba, iopoll); 13806733b39aSJayamohan Kallickal 13816733b39aSJayamohan Kallickal ret = beiscsi_process_cq(phba); 13826733b39aSJayamohan Kallickal if (ret < budget) { 13836733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 13846733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 13856733b39aSJayamohan Kallickal 13866733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 13876733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 13886733b39aSJayamohan Kallickal blk_iopoll_complete(iop); 13896733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, phwi_context->be_eq.q.id, 0, 13906733b39aSJayamohan Kallickal 0, 1, 1); 13916733b39aSJayamohan Kallickal } 13926733b39aSJayamohan Kallickal return ret; 13936733b39aSJayamohan Kallickal } 13946733b39aSJayamohan Kallickal 13956733b39aSJayamohan Kallickal static void 13966733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 13976733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 13986733b39aSJayamohan Kallickal { 13996733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 14006733b39aSJayamohan Kallickal unsigned short sg_len, index; 14016733b39aSJayamohan Kallickal unsigned int sge_len = 0; 14026733b39aSJayamohan Kallickal unsigned long long addr; 14036733b39aSJayamohan Kallickal struct scatterlist *l_sg; 14046733b39aSJayamohan Kallickal unsigned int offset; 14056733b39aSJayamohan Kallickal 14066733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 14076733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 14086733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 14096733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 14106733b39aSJayamohan Kallickal 14116733b39aSJayamohan Kallickal l_sg = sg; 14126733b39aSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, sg_next(sg)) { 14136733b39aSJayamohan Kallickal if (index == 0) { 14146733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 14156733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 14166733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 14176733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 14186733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 14196733b39aSJayamohan Kallickal (addr >> 32)); 14206733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 14216733b39aSJayamohan Kallickal sg_len); 14226733b39aSJayamohan Kallickal sge_len = sg_len; 14236733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 14246733b39aSJayamohan Kallickal 1); 14256733b39aSJayamohan Kallickal } else { 14266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 14276733b39aSJayamohan Kallickal 0); 14286733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 14296733b39aSJayamohan Kallickal pwrb, sge_len); 14306733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 14316733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 14326733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 14336733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 14346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 14356733b39aSJayamohan Kallickal (addr >> 32)); 14366733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 14376733b39aSJayamohan Kallickal sg_len); 14386733b39aSJayamohan Kallickal } 14396733b39aSJayamohan Kallickal } 14406733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 14416733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 14426733b39aSJayamohan Kallickal 14436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 14446733b39aSJayamohan Kallickal 14456733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 14466733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 14476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 14486733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 14496733b39aSJayamohan Kallickal 14506733b39aSJayamohan Kallickal if (num_sg == 2) 14516733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1); 14526733b39aSJayamohan Kallickal sg = l_sg; 14536733b39aSJayamohan Kallickal psgl++; 14546733b39aSJayamohan Kallickal psgl++; 14556733b39aSJayamohan Kallickal offset = 0; 14566733b39aSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg_next(sg), psgl++) { 14576733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 14586733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 14596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 14606733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 14616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 14626733b39aSJayamohan Kallickal (addr >> 32)); 14636733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 14646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 14656733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 14666733b39aSJayamohan Kallickal offset += sg_len; 14676733b39aSJayamohan Kallickal } 14686733b39aSJayamohan Kallickal psgl--; 14696733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 14706733b39aSJayamohan Kallickal } 14716733b39aSJayamohan Kallickal 14726733b39aSJayamohan Kallickal static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 14736733b39aSJayamohan Kallickal { 14746733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 14756733b39aSJayamohan Kallickal unsigned long long addr; 14766733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 14776733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 14786733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 14796733b39aSJayamohan Kallickal 14806733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 14816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 14826733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 14836733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 14846733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 14856733b39aSJayamohan Kallickal 14866733b39aSJayamohan Kallickal if (task->data) { 14876733b39aSJayamohan Kallickal if (task->data_count) { 14886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 14896733b39aSJayamohan Kallickal addr = (u64) pci_map_single(phba->pcidev, 14906733b39aSJayamohan Kallickal task->data, 14916733b39aSJayamohan Kallickal task->data_count, 1); 14926733b39aSJayamohan Kallickal } else { 14936733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 14946733b39aSJayamohan Kallickal addr = 0; 14956733b39aSJayamohan Kallickal } 14966733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 14976733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 14986733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 14996733b39aSJayamohan Kallickal (addr >> 32)); 15006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 15016733b39aSJayamohan Kallickal task->data_count); 15026733b39aSJayamohan Kallickal 15036733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 15046733b39aSJayamohan Kallickal } else { 15056733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 15066733b39aSJayamohan Kallickal addr = 0; 15076733b39aSJayamohan Kallickal } 15086733b39aSJayamohan Kallickal 15096733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 15106733b39aSJayamohan Kallickal 15116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 15126733b39aSJayamohan Kallickal 15136733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 15146733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 15156733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 15166733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 15176733b39aSJayamohan Kallickal if (task->data) { 15186733b39aSJayamohan Kallickal psgl++; 15196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 15206733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 15216733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 15226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 15236733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 15246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 15256733b39aSJayamohan Kallickal 15266733b39aSJayamohan Kallickal psgl++; 15276733b39aSJayamohan Kallickal if (task->data) { 15286733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 15296733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 15306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 15316733b39aSJayamohan Kallickal (addr >> 32)); 15326733b39aSJayamohan Kallickal } 15336733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 15346733b39aSJayamohan Kallickal } 15356733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 15366733b39aSJayamohan Kallickal } 15376733b39aSJayamohan Kallickal 15386733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 15396733b39aSJayamohan Kallickal { 15406733b39aSJayamohan Kallickal unsigned int num_cq_pages, num_eq_pages, num_async_pdu_buf_pages; 15416733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 15426733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 15436733b39aSJayamohan Kallickal 15446733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 15456733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 15466733b39aSJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 15476733b39aSJayamohan Kallickal sizeof(struct be_eq_entry)); 15486733b39aSJayamohan Kallickal num_async_pdu_buf_pages = 15496733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 15506733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 15516733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages = 15526733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 15536733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 15546733b39aSJayamohan Kallickal num_async_pdu_data_pages = 15556733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 15566733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 15576733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages = 15586733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 15596733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 15606733b39aSJayamohan Kallickal 15616733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 15626733b39aSJayamohan Kallickal 15636733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 15646733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 15656733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 15666733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 15676733b39aSJayamohan Kallickal 15686733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_CQ] = num_cq_pages * PAGE_SIZE; 15696733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_EQ] = num_eq_pages * PAGE_SIZE; 15706733b39aSJayamohan Kallickal 15716733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 15726733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 15736733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 15746733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 15756733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 15766733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 15776733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 15786733b39aSJayamohan Kallickal 15796733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 15806733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 15816733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 15826733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 15836733b39aSJayamohan Kallickal 15846733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] = 15856733b39aSJayamohan Kallickal num_async_pdu_buf_pages * PAGE_SIZE; 15866733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] = 15876733b39aSJayamohan Kallickal num_async_pdu_data_pages * PAGE_SIZE; 15886733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] = 15896733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages * PAGE_SIZE; 15906733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_RING] = 15916733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages * PAGE_SIZE; 15926733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] = 15936733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 15946733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 15956733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] = 15966733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 15976733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 15986733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] = 15996733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 16006733b39aSJayamohan Kallickal (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry)); 16016733b39aSJayamohan Kallickal } 16026733b39aSJayamohan Kallickal 16036733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 16046733b39aSJayamohan Kallickal { 16056733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 16066733b39aSJayamohan Kallickal dma_addr_t bus_add; 16076733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 16086733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 16096733b39aSJayamohan Kallickal 16106733b39aSJayamohan Kallickal phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 16116733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 16126733b39aSJayamohan Kallickal return -ENOMEM; 16136733b39aSJayamohan Kallickal 16146733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 16156733b39aSJayamohan Kallickal GFP_KERNEL); 16166733b39aSJayamohan Kallickal if (!phba->init_mem) { 16176733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 16186733b39aSJayamohan Kallickal return -ENOMEM; 16196733b39aSJayamohan Kallickal } 16206733b39aSJayamohan Kallickal 16216733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 16226733b39aSJayamohan Kallickal GFP_KERNEL); 16236733b39aSJayamohan Kallickal if (!mem_arr_orig) { 16246733b39aSJayamohan Kallickal kfree(phba->init_mem); 16256733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 16266733b39aSJayamohan Kallickal return -ENOMEM; 16276733b39aSJayamohan Kallickal } 16286733b39aSJayamohan Kallickal 16296733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 16306733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 16316733b39aSJayamohan Kallickal j = 0; 16326733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 16336733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 16346733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 16356733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 16366733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 16376733b39aSJayamohan Kallickal do { 16386733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 16396733b39aSJayamohan Kallickal phba->pcidev, 16406733b39aSJayamohan Kallickal curr_alloc_size, 16416733b39aSJayamohan Kallickal &bus_add); 16426733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 16436733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 16446733b39aSJayamohan Kallickal goto free_mem; 16456733b39aSJayamohan Kallickal if (curr_alloc_size - 16466733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 16476733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 16486733b39aSJayamohan Kallickal (curr_alloc_size); 16496733b39aSJayamohan Kallickal else 16506733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 16516733b39aSJayamohan Kallickal } else { 16526733b39aSJayamohan Kallickal mem_arr->bus_address.u. 16536733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 16546733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 16556733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 16566733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 16576733b39aSJayamohan Kallickal 1024, alloc_size); 16586733b39aSJayamohan Kallickal j++; 16596733b39aSJayamohan Kallickal mem_arr++; 16606733b39aSJayamohan Kallickal } 16616733b39aSJayamohan Kallickal } while (alloc_size); 16626733b39aSJayamohan Kallickal mem_descr->num_elements = j; 16636733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 16646733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 16656733b39aSJayamohan Kallickal GFP_KERNEL); 16666733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 16676733b39aSJayamohan Kallickal goto free_mem; 16686733b39aSJayamohan Kallickal 16696733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 16706733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 16716733b39aSJayamohan Kallickal mem_descr++; 16726733b39aSJayamohan Kallickal } 16736733b39aSJayamohan Kallickal kfree(mem_arr_orig); 16746733b39aSJayamohan Kallickal return 0; 16756733b39aSJayamohan Kallickal free_mem: 16766733b39aSJayamohan Kallickal mem_descr->num_elements = j; 16776733b39aSJayamohan Kallickal while ((i) || (j)) { 16786733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 16796733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 16806733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 16816733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 16826733b39aSJayamohan Kallickal virtual_address, 16836733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 16846733b39aSJayamohan Kallickal bus_address.u.a64.address); 16856733b39aSJayamohan Kallickal } 16866733b39aSJayamohan Kallickal if (i) { 16876733b39aSJayamohan Kallickal i--; 16886733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 16896733b39aSJayamohan Kallickal mem_descr--; 16906733b39aSJayamohan Kallickal } 16916733b39aSJayamohan Kallickal } 16926733b39aSJayamohan Kallickal kfree(mem_arr_orig); 16936733b39aSJayamohan Kallickal kfree(phba->init_mem); 16946733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 16956733b39aSJayamohan Kallickal return -ENOMEM; 16966733b39aSJayamohan Kallickal } 16976733b39aSJayamohan Kallickal 16986733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 16996733b39aSJayamohan Kallickal { 17006733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 17016733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 17026733b39aSJayamohan Kallickal } 17036733b39aSJayamohan Kallickal 17046733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 17056733b39aSJayamohan Kallickal { 17066733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 17076733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 17086733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 17096733b39aSJayamohan Kallickal 17106733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 17116733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 17126733b39aSJayamohan Kallickal pdata_out = 17136733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 17146733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 17156733b39aSJayamohan Kallickal 17166733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 17176733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 17186733b39aSJayamohan Kallickal 17196733b39aSJayamohan Kallickal pnop_out = 17206733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 17216733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 17226733b39aSJayamohan Kallickal 17236733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 17246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 17256733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 17266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 17276733b39aSJayamohan Kallickal } 17286733b39aSJayamohan Kallickal 17296733b39aSJayamohan Kallickal static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 17306733b39aSJayamohan Kallickal { 17316733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 17326733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 17336733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 17346733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 17356733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb; 17366733b39aSJayamohan Kallickal unsigned int num_cxn_wrbh; 17376733b39aSJayamohan Kallickal unsigned int num_cxn_wrb, j, idx, index; 17386733b39aSJayamohan Kallickal 17396733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 17406733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 17416733b39aSJayamohan Kallickal 17426733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 17436733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 17446733b39aSJayamohan Kallickal 17456733b39aSJayamohan Kallickal idx = 0; 17466733b39aSJayamohan Kallickal pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address; 17476733b39aSJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 17486733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 17496733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 17506733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 17516733b39aSJayamohan Kallickal 17526733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 17536733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 17546733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "cid=%d pwrb_context=%p \n", index, 17556733b39aSJayamohan Kallickal pwrb_context); 17566733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 17576733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 17586733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 17596733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 17606733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 17616733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 17626733b39aSJayamohan Kallickal if (num_cxn_wrbh) { 17636733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 17646733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 17656733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 17666733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 17676733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 17686733b39aSJayamohan Kallickal pwrb_handle; 17696733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 17706733b39aSJayamohan Kallickal pwrb_handle++; 17716733b39aSJayamohan Kallickal } 17726733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 17736733b39aSJayamohan Kallickal num_cxn_wrbh--; 17746733b39aSJayamohan Kallickal } else { 17756733b39aSJayamohan Kallickal idx++; 17766733b39aSJayamohan Kallickal pwrb_handle = 17776733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 17786733b39aSJayamohan Kallickal num_cxn_wrbh = 17796733b39aSJayamohan Kallickal ((mem_descr_wrbh->mem_array[idx].size) / 17806733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 17816733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 17826733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 17836733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 17846733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 17856733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 17866733b39aSJayamohan Kallickal pwrb_handle; 17876733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 17886733b39aSJayamohan Kallickal pwrb_handle++; 17896733b39aSJayamohan Kallickal } 17906733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 17916733b39aSJayamohan Kallickal num_cxn_wrbh--; 17926733b39aSJayamohan Kallickal } 17936733b39aSJayamohan Kallickal } 17946733b39aSJayamohan Kallickal idx = 0; 17956733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 17966733b39aSJayamohan Kallickal num_cxn_wrb = 17976733b39aSJayamohan Kallickal ((mem_descr_wrb->mem_array[idx].size) / (sizeof(struct iscsi_wrb)) * 17986733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn); 17996733b39aSJayamohan Kallickal 18006733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index += 2) { 18016733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 18026733b39aSJayamohan Kallickal if (num_cxn_wrb) { 18036733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 18046733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 18056733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 18066733b39aSJayamohan Kallickal pwrb++; 18076733b39aSJayamohan Kallickal } 18086733b39aSJayamohan Kallickal num_cxn_wrb--; 18096733b39aSJayamohan Kallickal } else { 18106733b39aSJayamohan Kallickal idx++; 18116733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 18126733b39aSJayamohan Kallickal num_cxn_wrb = ((mem_descr_wrb->mem_array[idx].size) / 18136733b39aSJayamohan Kallickal (sizeof(struct iscsi_wrb)) * 18146733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn); 18156733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 18166733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 18176733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 18186733b39aSJayamohan Kallickal pwrb++; 18196733b39aSJayamohan Kallickal } 18206733b39aSJayamohan Kallickal num_cxn_wrb--; 18216733b39aSJayamohan Kallickal } 18226733b39aSJayamohan Kallickal } 18236733b39aSJayamohan Kallickal } 18246733b39aSJayamohan Kallickal 18256733b39aSJayamohan Kallickal static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 18266733b39aSJayamohan Kallickal { 18276733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 18286733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 18296733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 18306733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 18316733b39aSJayamohan Kallickal unsigned int index; 18326733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 18336733b39aSJayamohan Kallickal 18346733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 18356733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT; 18366733b39aSJayamohan Kallickal 18376733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 18386733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *) 18396733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 18406733b39aSJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx; 18416733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 18426733b39aSJayamohan Kallickal 18436733b39aSJayamohan Kallickal pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl; 18446733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz; 18456733b39aSJayamohan Kallickal pasync_ctx->async_data.buffer_size = p->defpdu_data_sz; 18466733b39aSJayamohan Kallickal pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl; 18476733b39aSJayamohan Kallickal 18486733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 18496733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF; 18506733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 18516733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 18526733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF" 18536733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 18546733b39aSJayamohan Kallickal } else 18556733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 18566733b39aSJayamohan Kallickal "No Virtual address \n"); 18576733b39aSJayamohan Kallickal 18586733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 18596733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 18606733b39aSJayamohan Kallickal 18616733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 18626733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 18636733b39aSJayamohan Kallickal 18646733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 18656733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 18666733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 18676733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 18686733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING" 18696733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 18706733b39aSJayamohan Kallickal } else 18716733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 18726733b39aSJayamohan Kallickal "No Virtual address \n"); 18736733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 18746733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 18756733b39aSJayamohan Kallickal 18766733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 18776733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE; 18786733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 18796733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 18806733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE" 18816733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 18826733b39aSJayamohan Kallickal } else 18836733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 18846733b39aSJayamohan Kallickal "No Virtual address \n"); 18856733b39aSJayamohan Kallickal 18866733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 18876733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 18886733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 18896733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 18906733b39aSJayamohan Kallickal 18916733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 18926733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF; 18936733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 18946733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 18956733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF" 18966733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 18976733b39aSJayamohan Kallickal } else 18986733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 18996733b39aSJayamohan Kallickal "No Virtual address \n"); 19006733b39aSJayamohan Kallickal pasync_ctx->async_data.va_base = 19016733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 19026733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 19036733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 19046733b39aSJayamohan Kallickal 19056733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 19066733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 19076733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 19086733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 19096733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING" 19106733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 19116733b39aSJayamohan Kallickal } else 19126733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 19136733b39aSJayamohan Kallickal "No Virtual address \n"); 19146733b39aSJayamohan Kallickal 19156733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 19166733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 19176733b39aSJayamohan Kallickal 19186733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 19196733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE; 19206733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 19216733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 19226733b39aSJayamohan Kallickal "No Virtual address \n"); 19236733b39aSJayamohan Kallickal 19246733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 19256733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 19266733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 19276733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 19286733b39aSJayamohan Kallickal 19296733b39aSJayamohan Kallickal pasync_header_h = 19306733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_header.handle_base; 19316733b39aSJayamohan Kallickal pasync_data_h = 19326733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_data.handle_base; 19336733b39aSJayamohan Kallickal 19346733b39aSJayamohan Kallickal for (index = 0; index < p->asyncpdus_per_ctrl; index++) { 19356733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 19366733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 19376733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 19386733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 19396733b39aSJayamohan Kallickal (void *)((unsigned long) 19406733b39aSJayamohan Kallickal (pasync_ctx->async_header.va_base) + 19416733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 19426733b39aSJayamohan Kallickal 19436733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 19446733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address + 19456733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index); 19466733b39aSJayamohan Kallickal 19476733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 19486733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 19496733b39aSJayamohan Kallickal pasync_header_h++; 19506733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 19516733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 19526733b39aSJayamohan Kallickal 19536733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list); 19546733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 19556733b39aSJayamohan Kallickal header_busy_list); 19566733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 19576733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 19586733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 19596733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 19606733b39aSJayamohan Kallickal (void *)((unsigned long) 19616733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 19626733b39aSJayamohan Kallickal (p->defpdu_data_sz * index)); 19636733b39aSJayamohan Kallickal 19646733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 19656733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address + 19666733b39aSJayamohan Kallickal (p->defpdu_data_sz * index); 19676733b39aSJayamohan Kallickal 19686733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 19696733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 19706733b39aSJayamohan Kallickal pasync_data_h++; 19716733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 19726733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 19736733b39aSJayamohan Kallickal 19746733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list); 19756733b39aSJayamohan Kallickal } 19766733b39aSJayamohan Kallickal 19776733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 19786733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 19796733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 19806733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 19816733b39aSJayamohan Kallickal } 19826733b39aSJayamohan Kallickal 19836733b39aSJayamohan Kallickal static int 19846733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 19856733b39aSJayamohan Kallickal u64 physical_address, u32 length, 19866733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 19876733b39aSJayamohan Kallickal { 19886733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 19896733b39aSJayamohan Kallickal WARN_ON(!physical_address); 19906733b39aSJayamohan Kallickal WARN_ON(!length > 0); 19916733b39aSJayamohan Kallickal WARN_ON(!sgl); 19926733b39aSJayamohan Kallickal 19936733b39aSJayamohan Kallickal sgl->va = virtual_address; 19946733b39aSJayamohan Kallickal sgl->dma = physical_address; 19956733b39aSJayamohan Kallickal sgl->size = length; 19966733b39aSJayamohan Kallickal 19976733b39aSJayamohan Kallickal return 0; 19986733b39aSJayamohan Kallickal } 19996733b39aSJayamohan Kallickal 20006733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 20016733b39aSJayamohan Kallickal { 20026733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 20036733b39aSJayamohan Kallickal } 20046733b39aSJayamohan Kallickal 20056733b39aSJayamohan Kallickal static void 20066733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 20076733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 20086733b39aSJayamohan Kallickal { 20096733b39aSJayamohan Kallickal if (sgl->va) 20106733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 20116733b39aSJayamohan Kallickal 20126733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 20136733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 20146733b39aSJayamohan Kallickal pmem->size, sgl); 20156733b39aSJayamohan Kallickal } 20166733b39aSJayamohan Kallickal 20176733b39aSJayamohan Kallickal static void 20186733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 20196733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 20206733b39aSJayamohan Kallickal { 20216733b39aSJayamohan Kallickal if (sgl->va) 20226733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 20236733b39aSJayamohan Kallickal 20246733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 20256733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 20266733b39aSJayamohan Kallickal pmem->size, sgl); 20276733b39aSJayamohan Kallickal } 20286733b39aSJayamohan Kallickal 20296733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 20306733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 20316733b39aSJayamohan Kallickal { 20326733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 20336733b39aSJayamohan Kallickal 20346733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 20356733b39aSJayamohan Kallickal q->len = len; 20366733b39aSJayamohan Kallickal q->entry_size = entry_size; 20376733b39aSJayamohan Kallickal mem->size = len * entry_size; 20386733b39aSJayamohan Kallickal mem->va = vaddress; 20396733b39aSJayamohan Kallickal if (!mem->va) 20406733b39aSJayamohan Kallickal return -ENOMEM; 20416733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 20426733b39aSJayamohan Kallickal return 0; 20436733b39aSJayamohan Kallickal } 20446733b39aSJayamohan Kallickal 20456733b39aSJayamohan Kallickal static int beiscsi_create_eq(struct beiscsi_hba *phba, 20466733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 20476733b39aSJayamohan Kallickal { 20486733b39aSJayamohan Kallickal unsigned int idx; 20496733b39aSJayamohan Kallickal int ret; 20506733b39aSJayamohan Kallickal struct be_queue_info *eq; 20516733b39aSJayamohan Kallickal struct be_dma_mem *mem; 20526733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 20536733b39aSJayamohan Kallickal void *eq_vaddress; 20546733b39aSJayamohan Kallickal 20556733b39aSJayamohan Kallickal idx = 0; 20566733b39aSJayamohan Kallickal eq = &phwi_context->be_eq.q; 20576733b39aSJayamohan Kallickal mem = &eq->dma_mem; 20586733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 20596733b39aSJayamohan Kallickal mem_descr += HWI_MEM_EQ; 20606733b39aSJayamohan Kallickal eq_vaddress = mem_descr->mem_array[idx].virtual_address; 20616733b39aSJayamohan Kallickal 20626733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 20636733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 20646733b39aSJayamohan Kallickal if (ret) { 20656733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 20666733b39aSJayamohan Kallickal "be_fill_queue Failed for EQ \n"); 20676733b39aSJayamohan Kallickal return ret; 20686733b39aSJayamohan Kallickal } 20696733b39aSJayamohan Kallickal 20706733b39aSJayamohan Kallickal mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address; 20716733b39aSJayamohan Kallickal 20726733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 20736733b39aSJayamohan Kallickal phwi_context->be_eq.cur_eqd); 20746733b39aSJayamohan Kallickal if (ret) { 20756733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_cmd_eq_create" 20766733b39aSJayamohan Kallickal "Failedfor EQ \n"); 20776733b39aSJayamohan Kallickal return ret; 20786733b39aSJayamohan Kallickal } 20796733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq id is %d\n", phwi_context->be_eq.q.id); 20806733b39aSJayamohan Kallickal return 0; 20816733b39aSJayamohan Kallickal } 20826733b39aSJayamohan Kallickal 20836733b39aSJayamohan Kallickal static int beiscsi_create_cq(struct beiscsi_hba *phba, 20846733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 20856733b39aSJayamohan Kallickal { 20866733b39aSJayamohan Kallickal unsigned int idx; 20876733b39aSJayamohan Kallickal int ret; 20886733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 20896733b39aSJayamohan Kallickal struct be_dma_mem *mem; 20906733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 20916733b39aSJayamohan Kallickal void *cq_vaddress; 20926733b39aSJayamohan Kallickal 20936733b39aSJayamohan Kallickal idx = 0; 20946733b39aSJayamohan Kallickal cq = &phwi_context->be_cq; 20956733b39aSJayamohan Kallickal eq = &phwi_context->be_eq.q; 20966733b39aSJayamohan Kallickal mem = &cq->dma_mem; 20976733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 20986733b39aSJayamohan Kallickal mem_descr += HWI_MEM_CQ; 20996733b39aSJayamohan Kallickal cq_vaddress = mem_descr->mem_array[idx].virtual_address; 21006733b39aSJayamohan Kallickal ret = be_fill_queue(cq, phba->params.icds_per_ctrl / 2, 21016733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 21026733b39aSJayamohan Kallickal if (ret) { 21036733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 21046733b39aSJayamohan Kallickal "be_fill_queue Failed for ISCSI CQ \n"); 21056733b39aSJayamohan Kallickal return ret; 21066733b39aSJayamohan Kallickal } 21076733b39aSJayamohan Kallickal 21086733b39aSJayamohan Kallickal mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address; 21096733b39aSJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, false, 0); 21106733b39aSJayamohan Kallickal if (ret) { 21116733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 21126733b39aSJayamohan Kallickal "beiscsi_cmd_eq_create Failed for ISCSI CQ \n"); 21136733b39aSJayamohan Kallickal return ret; 21146733b39aSJayamohan Kallickal } 21156733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi cq id is %d\n", phwi_context->be_cq.id); 21166733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n"); 21176733b39aSJayamohan Kallickal return 0; 21186733b39aSJayamohan Kallickal } 21196733b39aSJayamohan Kallickal 21206733b39aSJayamohan Kallickal static int 21216733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 21226733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 21236733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 21246733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 21256733b39aSJayamohan Kallickal { 21266733b39aSJayamohan Kallickal unsigned int idx; 21276733b39aSJayamohan Kallickal int ret; 21286733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 21296733b39aSJayamohan Kallickal struct be_dma_mem *mem; 21306733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 21316733b39aSJayamohan Kallickal void *dq_vaddress; 21326733b39aSJayamohan Kallickal 21336733b39aSJayamohan Kallickal idx = 0; 21346733b39aSJayamohan Kallickal dq = &phwi_context->be_def_hdrq; 21356733b39aSJayamohan Kallickal cq = &phwi_context->be_cq; 21366733b39aSJayamohan Kallickal mem = &dq->dma_mem; 21376733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 21386733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 21396733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 21406733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 21416733b39aSJayamohan Kallickal sizeof(struct phys_addr), 21426733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 21436733b39aSJayamohan Kallickal if (ret) { 21446733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 21456733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU HDR\n"); 21466733b39aSJayamohan Kallickal return ret; 21476733b39aSJayamohan Kallickal } 21486733b39aSJayamohan Kallickal mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address; 21496733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 21506733b39aSJayamohan Kallickal def_pdu_ring_sz, 21516733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 21526733b39aSJayamohan Kallickal if (ret) { 21536733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 21546733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed DEFHDR\n"); 21556733b39aSJayamohan Kallickal return ret; 21566733b39aSJayamohan Kallickal } 21576733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id; 21586733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n", 21596733b39aSJayamohan Kallickal phwi_context->be_def_hdrq.id); 21606733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 1); 21616733b39aSJayamohan Kallickal return 0; 21626733b39aSJayamohan Kallickal } 21636733b39aSJayamohan Kallickal 21646733b39aSJayamohan Kallickal static int 21656733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 21666733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 21676733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 21686733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 21696733b39aSJayamohan Kallickal { 21706733b39aSJayamohan Kallickal unsigned int idx; 21716733b39aSJayamohan Kallickal int ret; 21726733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 21736733b39aSJayamohan Kallickal struct be_dma_mem *mem; 21746733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 21756733b39aSJayamohan Kallickal void *dq_vaddress; 21766733b39aSJayamohan Kallickal 21776733b39aSJayamohan Kallickal idx = 0; 21786733b39aSJayamohan Kallickal dataq = &phwi_context->be_def_dataq; 21796733b39aSJayamohan Kallickal cq = &phwi_context->be_cq; 21806733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 21816733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 21826733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 21836733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 21846733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 21856733b39aSJayamohan Kallickal sizeof(struct phys_addr), 21866733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 21876733b39aSJayamohan Kallickal if (ret) { 21886733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 21896733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU DATA\n"); 21906733b39aSJayamohan Kallickal return ret; 21916733b39aSJayamohan Kallickal } 21926733b39aSJayamohan Kallickal mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address; 21936733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 21946733b39aSJayamohan Kallickal def_pdu_ring_sz, 21956733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 21966733b39aSJayamohan Kallickal if (ret) { 21976733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 21986733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed" 21996733b39aSJayamohan Kallickal " for DEF PDU DATA\n"); 22006733b39aSJayamohan Kallickal return ret; 22016733b39aSJayamohan Kallickal } 22026733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id; 22036733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n", 22046733b39aSJayamohan Kallickal phwi_context->be_def_dataq.id); 22056733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 0); 22066733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED \n"); 22076733b39aSJayamohan Kallickal return 0; 22086733b39aSJayamohan Kallickal } 22096733b39aSJayamohan Kallickal 22106733b39aSJayamohan Kallickal static int 22116733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 22126733b39aSJayamohan Kallickal { 22136733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 22146733b39aSJayamohan Kallickal struct mem_array *pm_arr; 22156733b39aSJayamohan Kallickal unsigned int page_offset, i; 22166733b39aSJayamohan Kallickal struct be_dma_mem sgl; 22176733b39aSJayamohan Kallickal int status; 22186733b39aSJayamohan Kallickal 22196733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 22206733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 22216733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 22226733b39aSJayamohan Kallickal 22236733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 22246733b39aSJayamohan Kallickal phba->fw_config.iscsi_icd_start) / PAGE_SIZE; 22256733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 22266733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 22276733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 22286733b39aSJayamohan Kallickal page_offset, 22296733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 22306733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 22316733b39aSJayamohan Kallickal if (status != 0) { 22326733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 22336733b39aSJayamohan Kallickal "post sgl failed.\n"); 22346733b39aSJayamohan Kallickal return status; 22356733b39aSJayamohan Kallickal } 22366733b39aSJayamohan Kallickal pm_arr++; 22376733b39aSJayamohan Kallickal } 22386733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "POSTED PAGES \n"); 22396733b39aSJayamohan Kallickal return 0; 22406733b39aSJayamohan Kallickal } 22416733b39aSJayamohan Kallickal 22426733b39aSJayamohan Kallickal static int 22436733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 22446733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 22456733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 22466733b39aSJayamohan Kallickal { 22476733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 22486733b39aSJayamohan Kallickal u64 pa_addr_lo; 22496733b39aSJayamohan Kallickal unsigned int idx, num, i; 22506733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 22516733b39aSJayamohan Kallickal void *wrb_vaddr; 22526733b39aSJayamohan Kallickal struct be_dma_mem sgl; 22536733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 22546733b39aSJayamohan Kallickal int status; 22556733b39aSJayamohan Kallickal 22566733b39aSJayamohan Kallickal idx = 0; 22576733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 22586733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 22596733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 22606733b39aSJayamohan Kallickal GFP_KERNEL); 22616733b39aSJayamohan Kallickal if (!pwrb_arr) { 22626733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 22636733b39aSJayamohan Kallickal "Memory alloc failed in create wrb ring.\n"); 22646733b39aSJayamohan Kallickal return -ENOMEM; 22656733b39aSJayamohan Kallickal } 22666733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 22676733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 22686733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 22696733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 22706733b39aSJayamohan Kallickal 22716733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 22726733b39aSJayamohan Kallickal if (num_wrb_rings) { 22736733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 22746733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 22756733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 22766733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 22776733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 22786733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 22796733b39aSJayamohan Kallickal num_wrb_rings--; 22806733b39aSJayamohan Kallickal } else { 22816733b39aSJayamohan Kallickal idx++; 22826733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 22836733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 22846733b39aSJayamohan Kallickal bus_address.u.a64.address; 22856733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 22866733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 22876733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 22886733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 22896733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 22906733b39aSJayamohan Kallickal = pa_addr_lo; 22916733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 22926733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 22936733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 22946733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 22956733b39aSJayamohan Kallickal num_wrb_rings--; 22966733b39aSJayamohan Kallickal } 22976733b39aSJayamohan Kallickal } 22986733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 22996733b39aSJayamohan Kallickal wrb_mem_index = 0; 23006733b39aSJayamohan Kallickal offset = 0; 23016733b39aSJayamohan Kallickal size = 0; 23026733b39aSJayamohan Kallickal 23036733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 23046733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 23056733b39aSJayamohan Kallickal &phwi_context->be_wrbq[i]); 23066733b39aSJayamohan Kallickal if (status != 0) { 23076733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 23086733b39aSJayamohan Kallickal "wrbq create failed."); 23096733b39aSJayamohan Kallickal return status; 23106733b39aSJayamohan Kallickal } 23116733b39aSJayamohan Kallickal phwi_ctrlr->wrb_context[i].cid = phwi_context->be_wrbq[i].id; 23126733b39aSJayamohan Kallickal } 23136733b39aSJayamohan Kallickal kfree(pwrb_arr); 23146733b39aSJayamohan Kallickal return 0; 23156733b39aSJayamohan Kallickal } 23166733b39aSJayamohan Kallickal 23176733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 23186733b39aSJayamohan Kallickal { 23196733b39aSJayamohan Kallickal unsigned int index; 23206733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 23216733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 23226733b39aSJayamohan Kallickal 23236733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 23246733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 23256733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 23266733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 23276733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 23286733b39aSJayamohan Kallickal } 23296733b39aSJayamohan Kallickal } 23306733b39aSJayamohan Kallickal 23316733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 23326733b39aSJayamohan Kallickal { 23336733b39aSJayamohan Kallickal struct be_queue_info *q; 23346733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 23356733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 23366733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 23376733b39aSJayamohan Kallickal int i; 23386733b39aSJayamohan Kallickal 23396733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 23406733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 23416733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 23426733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 23436733b39aSJayamohan Kallickal if (q->created) 23446733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 23456733b39aSJayamohan Kallickal } 23466733b39aSJayamohan Kallickal 23476733b39aSJayamohan Kallickal free_wrb_handles(phba); 23486733b39aSJayamohan Kallickal 23496733b39aSJayamohan Kallickal q = &phwi_context->be_def_hdrq; 23506733b39aSJayamohan Kallickal if (q->created) 23516733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 23526733b39aSJayamohan Kallickal 23536733b39aSJayamohan Kallickal q = &phwi_context->be_def_dataq; 23546733b39aSJayamohan Kallickal if (q->created) 23556733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 23566733b39aSJayamohan Kallickal 23576733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 23586733b39aSJayamohan Kallickal 23596733b39aSJayamohan Kallickal q = &phwi_context->be_cq; 23606733b39aSJayamohan Kallickal if (q->created) 23616733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 23626733b39aSJayamohan Kallickal 23636733b39aSJayamohan Kallickal q = &phwi_context->be_eq.q; 23646733b39aSJayamohan Kallickal if (q->created) 23656733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 23666733b39aSJayamohan Kallickal } 23676733b39aSJayamohan Kallickal 23686733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 23696733b39aSJayamohan Kallickal { 23706733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 23716733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 23726733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 23736733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 23746733b39aSJayamohan Kallickal int status; 23756733b39aSJayamohan Kallickal 23766733b39aSJayamohan Kallickal def_pdu_ring_sz = 23776733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr); 23786733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 23796733b39aSJayamohan Kallickal 23806733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 23816733b39aSJayamohan Kallickal phwi_context->be_eq.max_eqd = 0; 23826733b39aSJayamohan Kallickal phwi_context->be_eq.min_eqd = 0; 23836733b39aSJayamohan Kallickal phwi_context->be_eq.cur_eqd = 64; 23846733b39aSJayamohan Kallickal phwi_context->be_eq.enable_aic = false; 23856733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 23866733b39aSJayamohan Kallickal status = beiscsi_create_eq(phba, phwi_context); 23876733b39aSJayamohan Kallickal if (status != 0) { 23886733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "EQ not created \n"); 23896733b39aSJayamohan Kallickal goto error; 23906733b39aSJayamohan Kallickal } 23916733b39aSJayamohan Kallickal 23926733b39aSJayamohan Kallickal status = mgmt_check_supported_fw(ctrl); 23936733b39aSJayamohan Kallickal if (status != 0) { 23946733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 23956733b39aSJayamohan Kallickal "Unsupported fw version \n"); 23966733b39aSJayamohan Kallickal goto error; 23976733b39aSJayamohan Kallickal } 23986733b39aSJayamohan Kallickal 23996733b39aSJayamohan Kallickal status = mgmt_get_fw_config(ctrl, phba); 24006733b39aSJayamohan Kallickal if (status != 0) { 24016733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24026733b39aSJayamohan Kallickal "Error getting fw config\n"); 24036733b39aSJayamohan Kallickal goto error; 24046733b39aSJayamohan Kallickal } 24056733b39aSJayamohan Kallickal 24066733b39aSJayamohan Kallickal status = beiscsi_create_cq(phba, phwi_context); 24076733b39aSJayamohan Kallickal if (status != 0) { 24086733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "CQ not created\n"); 24096733b39aSJayamohan Kallickal goto error; 24106733b39aSJayamohan Kallickal } 24116733b39aSJayamohan Kallickal 24126733b39aSJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr, 24136733b39aSJayamohan Kallickal def_pdu_ring_sz); 24146733b39aSJayamohan Kallickal if (status != 0) { 24156733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24166733b39aSJayamohan Kallickal "Default Header not created\n"); 24176733b39aSJayamohan Kallickal goto error; 24186733b39aSJayamohan Kallickal } 24196733b39aSJayamohan Kallickal 24206733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 24216733b39aSJayamohan Kallickal phwi_ctrlr, def_pdu_ring_sz); 24226733b39aSJayamohan Kallickal if (status != 0) { 24236733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24246733b39aSJayamohan Kallickal "Default Data not created\n"); 24256733b39aSJayamohan Kallickal goto error; 24266733b39aSJayamohan Kallickal } 24276733b39aSJayamohan Kallickal 24286733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 24296733b39aSJayamohan Kallickal if (status != 0) { 24306733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n"); 24316733b39aSJayamohan Kallickal goto error; 24326733b39aSJayamohan Kallickal } 24336733b39aSJayamohan Kallickal 24346733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 24356733b39aSJayamohan Kallickal if (status != 0) { 24366733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24376733b39aSJayamohan Kallickal "WRB Rings not created\n"); 24386733b39aSJayamohan Kallickal goto error; 24396733b39aSJayamohan Kallickal } 24406733b39aSJayamohan Kallickal 24416733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n"); 24426733b39aSJayamohan Kallickal return 0; 24436733b39aSJayamohan Kallickal 24446733b39aSJayamohan Kallickal error: 24456733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed"); 24466733b39aSJayamohan Kallickal hwi_cleanup(phba); 24476733b39aSJayamohan Kallickal return -ENOMEM; 24486733b39aSJayamohan Kallickal } 24496733b39aSJayamohan Kallickal 24506733b39aSJayamohan Kallickal 24516733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 24526733b39aSJayamohan Kallickal { 24536733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 24546733b39aSJayamohan Kallickal 24556733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 24566733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 24576733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 24586733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 24596733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p \n", 24606733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 24616733b39aSJayamohan Kallickal } else { 24626733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24636733b39aSJayamohan Kallickal "HWI_MEM_ADDN_CONTEXT is more than one element." 24646733b39aSJayamohan Kallickal "Failing to load\n"); 24656733b39aSJayamohan Kallickal return -ENOMEM; 24666733b39aSJayamohan Kallickal } 24676733b39aSJayamohan Kallickal 24686733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 24696733b39aSJayamohan Kallickal beiscsi_init_wrb_handle(phba); 24706733b39aSJayamohan Kallickal hwi_init_async_pdu_ctx(phba); 24716733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 24726733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24736733b39aSJayamohan Kallickal "hwi_init_controller failed\n"); 24746733b39aSJayamohan Kallickal return -ENOMEM; 24756733b39aSJayamohan Kallickal } 24766733b39aSJayamohan Kallickal return 0; 24776733b39aSJayamohan Kallickal } 24786733b39aSJayamohan Kallickal 24796733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 24806733b39aSJayamohan Kallickal { 24816733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 24826733b39aSJayamohan Kallickal int i, j; 24836733b39aSJayamohan Kallickal 24846733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 24856733b39aSJayamohan Kallickal i = 0; 24866733b39aSJayamohan Kallickal j = 0; 24876733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 24886733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 24896733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 24906733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 24916733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 24926733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].bus_address. 24936733b39aSJayamohan Kallickal u.a64.address); 24946733b39aSJayamohan Kallickal } 24956733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 24966733b39aSJayamohan Kallickal mem_descr++; 24976733b39aSJayamohan Kallickal } 24986733b39aSJayamohan Kallickal kfree(phba->init_mem); 24996733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 25006733b39aSJayamohan Kallickal } 25016733b39aSJayamohan Kallickal 25026733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 25036733b39aSJayamohan Kallickal { 25046733b39aSJayamohan Kallickal int ret = -ENOMEM; 25056733b39aSJayamohan Kallickal 25066733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 25076733b39aSJayamohan Kallickal if (ret < 0) { 25086733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -" 25096733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory \n"); 25106733b39aSJayamohan Kallickal return ret; 25116733b39aSJayamohan Kallickal } 25126733b39aSJayamohan Kallickal 25136733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 25146733b39aSJayamohan Kallickal if (ret) 25156733b39aSJayamohan Kallickal goto free_init; 25166733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller"); 25176733b39aSJayamohan Kallickal return 0; 25186733b39aSJayamohan Kallickal 25196733b39aSJayamohan Kallickal free_init: 25206733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 25216733b39aSJayamohan Kallickal return -ENOMEM; 25226733b39aSJayamohan Kallickal } 25236733b39aSJayamohan Kallickal 25246733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 25256733b39aSJayamohan Kallickal { 25266733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 25276733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 25286733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 25296733b39aSJayamohan Kallickal unsigned int arr_index, i, idx; 25306733b39aSJayamohan Kallickal 25316733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 25326733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 25336733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 25346733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 25356733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 25366733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 25376733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 25386733b39aSJayamohan Kallickal GFP_KERNEL); 25396733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 25406733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25416733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 25426733b39aSJayamohan Kallickal return -ENOMEM; 25436733b39aSJayamohan Kallickal } 25446733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 25456733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 25466733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 25476733b39aSJayamohan Kallickal GFP_KERNEL); 25486733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 25496733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 25506733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25516733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 25526733b39aSJayamohan Kallickal return -ENOMEM; 25536733b39aSJayamohan Kallickal } 25546733b39aSJayamohan Kallickal } else { 25556733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25566733b39aSJayamohan Kallickal "HWI_MEM_SGLH is more than one element." 25576733b39aSJayamohan Kallickal "Failing to load\n"); 25586733b39aSJayamohan Kallickal return -ENOMEM; 25596733b39aSJayamohan Kallickal } 25606733b39aSJayamohan Kallickal 25616733b39aSJayamohan Kallickal arr_index = 0; 25626733b39aSJayamohan Kallickal idx = 0; 25636733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 25646733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 25656733b39aSJayamohan Kallickal 25666733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 25676733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 25686733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 25696733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 25706733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 25716733b39aSJayamohan Kallickal arr_index++; 25726733b39aSJayamohan Kallickal } else { 25736733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 25746733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 25756733b39aSJayamohan Kallickal psgl_handle; 25766733b39aSJayamohan Kallickal arr_index++; 25776733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 25786733b39aSJayamohan Kallickal } 25796733b39aSJayamohan Kallickal psgl_handle++; 25806733b39aSJayamohan Kallickal } 25816733b39aSJayamohan Kallickal idx++; 25826733b39aSJayamohan Kallickal } 25836733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 25846733b39aSJayamohan Kallickal "phba->io_sgl_hndl_avbl=%d" 25856733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d \n", 25866733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 25876733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 25886733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 25896733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 25906733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d \n", 25916733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 25926733b39aSJayamohan Kallickal arr_index = 0; 25936733b39aSJayamohan Kallickal idx = 0; 25946733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 25956733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 25966733b39aSJayamohan Kallickal 25976733b39aSJayamohan Kallickal for (i = 0; 25986733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 25996733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 26006733b39aSJayamohan Kallickal i++) { 26016733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 26026733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 26036733b39aSJayamohan Kallickal else 26046733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 26056733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 26066733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 26076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 26086733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 26096733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 26106733b39aSJayamohan Kallickal psgl_handle->sgl_index = 26116733b39aSJayamohan Kallickal phba->fw_config.iscsi_cid_start + arr_index++; 26126733b39aSJayamohan Kallickal } 26136733b39aSJayamohan Kallickal idx++; 26146733b39aSJayamohan Kallickal } 26156733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 26166733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 26176733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 26186733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 26196733b39aSJayamohan Kallickal return 0; 26206733b39aSJayamohan Kallickal } 26216733b39aSJayamohan Kallickal 26226733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 26236733b39aSJayamohan Kallickal { 26246733b39aSJayamohan Kallickal int i, new_cid; 26256733b39aSJayamohan Kallickal 26266733b39aSJayamohan Kallickal phba->cid_array = kmalloc(sizeof(void *) * phba->params.cxns_per_ctrl, 26276733b39aSJayamohan Kallickal GFP_KERNEL); 26286733b39aSJayamohan Kallickal if (!phba->cid_array) { 26296733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26306733b39aSJayamohan Kallickal "Failed to allocate memory in " 26316733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 26326733b39aSJayamohan Kallickal return -ENOMEM; 26336733b39aSJayamohan Kallickal } 26346733b39aSJayamohan Kallickal phba->ep_array = kmalloc(sizeof(struct iscsi_endpoint *) * 26356733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl * 2, GFP_KERNEL); 26366733b39aSJayamohan Kallickal if (!phba->ep_array) { 26376733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26386733b39aSJayamohan Kallickal "Failed to allocate memory in " 26396733b39aSJayamohan Kallickal "hba_setup_cid_tbls \n"); 26406733b39aSJayamohan Kallickal kfree(phba->cid_array); 26416733b39aSJayamohan Kallickal return -ENOMEM; 26426733b39aSJayamohan Kallickal } 26436733b39aSJayamohan Kallickal new_cid = phba->fw_config.iscsi_icd_start; 26446733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 26456733b39aSJayamohan Kallickal phba->cid_array[i] = new_cid; 26466733b39aSJayamohan Kallickal new_cid += 2; 26476733b39aSJayamohan Kallickal } 26486733b39aSJayamohan Kallickal phba->avlbl_cids = phba->params.cxns_per_ctrl; 26496733b39aSJayamohan Kallickal return 0; 26506733b39aSJayamohan Kallickal } 26516733b39aSJayamohan Kallickal 26526733b39aSJayamohan Kallickal static unsigned char hwi_enable_intr(struct beiscsi_hba *phba) 26536733b39aSJayamohan Kallickal { 26546733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 26556733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 26566733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 26576733b39aSJayamohan Kallickal struct be_queue_info *eq; 26586733b39aSJayamohan Kallickal u8 __iomem *addr; 26596733b39aSJayamohan Kallickal u32 reg; 26606733b39aSJayamohan Kallickal u32 enabled; 26616733b39aSJayamohan Kallickal 26626733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 26636733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 26646733b39aSJayamohan Kallickal 26656733b39aSJayamohan Kallickal eq = &phwi_context->be_eq.q; 26666733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 26676733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 26686733b39aSJayamohan Kallickal reg = ioread32(addr); 26696733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x \n", reg); 26706733b39aSJayamohan Kallickal 26716733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 26726733b39aSJayamohan Kallickal if (!enabled) { 26736733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 26746733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr); 26756733b39aSJayamohan Kallickal iowrite32(reg, addr); 26766733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id); 26776733b39aSJayamohan Kallickal 26786733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 26796733b39aSJayamohan Kallickal } else 26806733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 26816733b39aSJayamohan Kallickal "In hwi_enable_intr, Not Enabled \n"); 26826733b39aSJayamohan Kallickal return true; 26836733b39aSJayamohan Kallickal } 26846733b39aSJayamohan Kallickal 26856733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 26866733b39aSJayamohan Kallickal { 26876733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 26886733b39aSJayamohan Kallickal 26896733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 26906733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 26916733b39aSJayamohan Kallickal 26926733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 26936733b39aSJayamohan Kallickal if (enabled) { 26946733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 26956733b39aSJayamohan Kallickal iowrite32(reg, addr); 26966733b39aSJayamohan Kallickal } else 26976733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 26986733b39aSJayamohan Kallickal "In hwi_disable_intr, Already Disabled \n"); 26996733b39aSJayamohan Kallickal } 27006733b39aSJayamohan Kallickal 27016733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 27026733b39aSJayamohan Kallickal { 27036733b39aSJayamohan Kallickal int ret; 27046733b39aSJayamohan Kallickal 27056733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 27066733b39aSJayamohan Kallickal if (ret < 0) { 27076733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27086733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 27096733b39aSJayamohan Kallickal "beiscsi_init_controller \n"); 27106733b39aSJayamohan Kallickal return ret; 27116733b39aSJayamohan Kallickal } 27126733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(phba); 27136733b39aSJayamohan Kallickal if (ret < 0) { 27146733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27156733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 27166733b39aSJayamohan Kallickal "beiscsi_init_sgl_handle \n"); 27176733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 27186733b39aSJayamohan Kallickal } 27196733b39aSJayamohan Kallickal 27206733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 27216733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27226733b39aSJayamohan Kallickal "Failed in hba_setup_cid_tbls\n"); 27236733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 27246733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 27256733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 27266733b39aSJayamohan Kallickal } 27276733b39aSJayamohan Kallickal 27286733b39aSJayamohan Kallickal return ret; 27296733b39aSJayamohan Kallickal 27306733b39aSJayamohan Kallickal do_cleanup_ctrlr: 27316733b39aSJayamohan Kallickal hwi_cleanup(phba); 27326733b39aSJayamohan Kallickal return ret; 27336733b39aSJayamohan Kallickal } 27346733b39aSJayamohan Kallickal 27356733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 27366733b39aSJayamohan Kallickal { 27376733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 27386733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 27396733b39aSJayamohan Kallickal struct be_queue_info *eq; 27406733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 27416733b39aSJayamohan Kallickal 27426733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 27436733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 27446733b39aSJayamohan Kallickal eq = &phwi_context->be_eq.q; 27456733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 27466733b39aSJayamohan Kallickal 27476733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 27486733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 27496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 27506733b39aSJayamohan Kallickal queue_tail_inc(eq); 27516733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 27526733b39aSJayamohan Kallickal } 27536733b39aSJayamohan Kallickal } 27546733b39aSJayamohan Kallickal 27556733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 27566733b39aSJayamohan Kallickal { 27576733b39aSJayamohan Kallickal unsigned char mgmt_status; 27586733b39aSJayamohan Kallickal 27596733b39aSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0); 27606733b39aSJayamohan Kallickal if (mgmt_status) 27616733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 27626733b39aSJayamohan Kallickal "mgmt_epfw_cleanup FAILED \n"); 27636733b39aSJayamohan Kallickal hwi_cleanup(phba); 27646733b39aSJayamohan Kallickal hwi_purge_eq(phba); 27656733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 27666733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 27676733b39aSJayamohan Kallickal kfree(phba->cid_array); 27686733b39aSJayamohan Kallickal kfree(phba->ep_array); 27696733b39aSJayamohan Kallickal } 27706733b39aSJayamohan Kallickal 27716733b39aSJayamohan Kallickal void 27726733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 27736733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 27746733b39aSJayamohan Kallickal { 27756733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 27766733b39aSJayamohan Kallickal struct iscsi_target_context_update_wrb *pwrb = NULL; 27776733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 27786733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 27796733b39aSJayamohan Kallickal u32 doorbell = 0; 27806733b39aSJayamohan Kallickal 27816733b39aSJayamohan Kallickal /* 27826733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 27836733b39aSJayamohan Kallickal * login/startup related tasks. 27846733b39aSJayamohan Kallickal */ 27856733b39aSJayamohan Kallickal pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid, 0); 27866733b39aSJayamohan Kallickal pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb; 27876733b39aSJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 27886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 27896733b39aSJayamohan Kallickal max_burst_length, pwrb, params->dw[offsetof 27906733b39aSJayamohan Kallickal (struct amap_beiscsi_offload_params, 27916733b39aSJayamohan Kallickal max_burst_length) / 32]); 27926733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 27936733b39aSJayamohan Kallickal max_send_data_segment_length, pwrb, 27946733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 27956733b39aSJayamohan Kallickal max_send_data_segment_length) / 32]); 27966733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 27976733b39aSJayamohan Kallickal first_burst_length, 27986733b39aSJayamohan Kallickal pwrb, 27996733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 28006733b39aSJayamohan Kallickal first_burst_length) / 32]); 28016733b39aSJayamohan Kallickal 28026733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb, 28036733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 28046733b39aSJayamohan Kallickal erl) / 32] & OFFLD_PARAMS_ERL)); 28056733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb, 28066733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 28076733b39aSJayamohan Kallickal dde) / 32] & OFFLD_PARAMS_DDE) >> 2); 28086733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb, 28096733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 28106733b39aSJayamohan Kallickal hde) / 32] & OFFLD_PARAMS_HDE) >> 3); 28116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb, 28126733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 28136733b39aSJayamohan Kallickal ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4); 28146733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb, 28156733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 28166733b39aSJayamohan Kallickal imd) / 32] & OFFLD_PARAMS_IMD) >> 5); 28176733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn, 28186733b39aSJayamohan Kallickal pwrb, 28196733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 28206733b39aSJayamohan Kallickal exp_statsn) / 32] + 1)); 28216733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb, 28226733b39aSJayamohan Kallickal 0x7); 28236733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx, 28246733b39aSJayamohan Kallickal pwrb, pwrb_handle->wrb_index); 28256733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb, 28266733b39aSJayamohan Kallickal pwrb, pwrb_handle->nxt_wrb_index); 28276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 28286733b39aSJayamohan Kallickal session_state, pwrb, 0); 28296733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack, 28306733b39aSJayamohan Kallickal pwrb, 1); 28316733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq, 28326733b39aSJayamohan Kallickal pwrb, 0); 28336733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb, 28346733b39aSJayamohan Kallickal 0); 28356733b39aSJayamohan Kallickal 28366733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28376733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 28386733b39aSJayamohan Kallickal 28396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 28406733b39aSJayamohan Kallickal pad_buffer_addr_hi, pwrb, 28416733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_hi); 28426733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 28436733b39aSJayamohan Kallickal pad_buffer_addr_lo, pwrb, 28446733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_lo); 28456733b39aSJayamohan Kallickal 28466733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb)); 28476733b39aSJayamohan Kallickal 28486733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 28496733b39aSJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) << 28506733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_SHIFT; 28516733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 28526733b39aSJayamohan Kallickal 28536733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 28546733b39aSJayamohan Kallickal } 28556733b39aSJayamohan Kallickal 28566733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 28576733b39aSJayamohan Kallickal int *index, int *age) 28586733b39aSJayamohan Kallickal { 28596733b39aSJayamohan Kallickal *index = be32_to_cpu(itt) >> 16; 28606733b39aSJayamohan Kallickal if (age) 28616733b39aSJayamohan Kallickal *age = conn->session->age; 28626733b39aSJayamohan Kallickal } 28636733b39aSJayamohan Kallickal 28646733b39aSJayamohan Kallickal /** 28656733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 28666733b39aSJayamohan Kallickal * @task: libiscsi task 28676733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 28686733b39aSJayamohan Kallickal * 28696733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 28706733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 28716733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 28726733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 28736733b39aSJayamohan Kallickal */ 28746733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 28756733b39aSJayamohan Kallickal { 28766733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 28776733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 28786733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 28796733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 28806733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 28816733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 28826733b39aSJayamohan Kallickal itt_t itt; 28836733b39aSJayamohan Kallickal 28846733b39aSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 28856733b39aSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid, 28866733b39aSJayamohan Kallickal task->itt); 28876733b39aSJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 28886733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 28896733b39aSJayamohan Kallickal 28906733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 28916733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 28926733b39aSJayamohan Kallickal 28936733b39aSJayamohan Kallickal if (task->sc) { 28946733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 28956733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 28966733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 28976733b39aSJayamohan Kallickal if (!io_task->psgl_handle) { 28986733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 28996733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context 29006733b39aSJayamohan Kallickal [beiscsi_conn->beiscsi_conn_cid]; 29016733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, 29026733b39aSJayamohan Kallickal io_task->pwrb_handle); 29036733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 29046733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 29056733b39aSJayamohan Kallickal "Alloc of SGL_ICD Failed \n"); 29066733b39aSJayamohan Kallickal return -ENOMEM; 29076733b39aSJayamohan Kallickal } 29086733b39aSJayamohan Kallickal } else { 29096733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 29106733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 29116733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 29126733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 29136733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 29146733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 29156733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 29166733b39aSJayamohan Kallickal if (!io_task->psgl_handle) { 29176733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29186733b39aSJayamohan Kallickal pwrb_context = 29196733b39aSJayamohan Kallickal &phwi_ctrlr->wrb_context 29206733b39aSJayamohan Kallickal [beiscsi_conn->beiscsi_conn_cid]; 29216733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, 29226733b39aSJayamohan Kallickal io_task->pwrb_handle); 29236733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 29246733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "Alloc of " 29256733b39aSJayamohan Kallickal "MGMT_SGL_ICD Failed \n"); 29266733b39aSJayamohan Kallickal return -ENOMEM; 29276733b39aSJayamohan Kallickal } 29286733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 29296733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 29306733b39aSJayamohan Kallickal io_task->psgl_handle; 29316733b39aSJayamohan Kallickal } else { 29326733b39aSJayamohan Kallickal io_task->psgl_handle = 29336733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 29346733b39aSJayamohan Kallickal } 29356733b39aSJayamohan Kallickal } else { 29366733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 29376733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 29386733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 29396733b39aSJayamohan Kallickal if (!io_task->psgl_handle) { 29406733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29416733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context 29426733b39aSJayamohan Kallickal [beiscsi_conn->beiscsi_conn_cid]; 29436733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, 29446733b39aSJayamohan Kallickal io_task->pwrb_handle); 29456733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 29466733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "Alloc of " 29476733b39aSJayamohan Kallickal "MGMT_SGL_ICD Failed \n"); 29486733b39aSJayamohan Kallickal return -ENOMEM; 29496733b39aSJayamohan Kallickal } 29506733b39aSJayamohan Kallickal } 29516733b39aSJayamohan Kallickal } 29526733b39aSJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)task->itt << 16) | 29536733b39aSJayamohan Kallickal (unsigned int)(io_task->psgl_handle->sgl_index)); 29546733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 29556733b39aSJayamohan Kallickal return 0; 29566733b39aSJayamohan Kallickal } 29576733b39aSJayamohan Kallickal 29586733b39aSJayamohan Kallickal static void beiscsi_cleanup_task(struct iscsi_task *task) 29596733b39aSJayamohan Kallickal { 29606733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 29616733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 29626733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 29636733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 29646733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 29656733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 29666733b39aSJayamohan Kallickal 29676733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29686733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid]; 29696733b39aSJayamohan Kallickal if (io_task->pwrb_handle) { 29706733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 29716733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 29726733b39aSJayamohan Kallickal } 29736733b39aSJayamohan Kallickal 29746733b39aSJayamohan Kallickal if (task->sc) { 29756733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 29766733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 29776733b39aSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 29786733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 29796733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 29806733b39aSJayamohan Kallickal } 29816733b39aSJayamohan Kallickal } else { 29826733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) 29836733b39aSJayamohan Kallickal return; 29846733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 29856733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 29866733b39aSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 29876733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 29886733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 29896733b39aSJayamohan Kallickal } 29906733b39aSJayamohan Kallickal } 29916733b39aSJayamohan Kallickal } 29926733b39aSJayamohan Kallickal 29936733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 29946733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 29956733b39aSJayamohan Kallickal unsigned int writedir) 29966733b39aSJayamohan Kallickal { 29976733b39aSJayamohan Kallickal 29986733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 29996733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 30006733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 30016733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 30026733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 30036733b39aSJayamohan Kallickal unsigned int doorbell = 0; 30046733b39aSJayamohan Kallickal 30056733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 30066733b39aSJayamohan Kallickal 30076733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 30086733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 30096733b39aSJayamohan Kallickal 30106733b39aSJayamohan Kallickal if (writedir) { 30116733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, " WRITE Command \t"); 30126733b39aSJayamohan Kallickal memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48); 30136733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, itt, 30146733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 30156733b39aSJayamohan Kallickal (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt); 30166733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, 30176733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 30186733b39aSJayamohan Kallickal ISCSI_OPCODE_SCSI_DATA_OUT); 30196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, final_bit, 30206733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 1); 30216733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD); 30226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 30236733b39aSJayamohan Kallickal 30246733b39aSJayamohan Kallickal } else { 30256733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "READ Command \t"); 30266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD); 30276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 30286733b39aSJayamohan Kallickal } 30296733b39aSJayamohan Kallickal memcpy(&io_task->cmd_bhs->iscsi_data_pdu. 30306733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_data_out, lun) / 32], 30316733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun)); 30326733b39aSJayamohan Kallickal 30336733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 30346733b39aSJayamohan Kallickal cpu_to_be16((unsigned short)io_task->cmd_bhs->iscsi_hdr. 30356733b39aSJayamohan Kallickal lun[0])); 30366733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 30376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 30386733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 30396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 30406733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 30416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 30426733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 30436733b39aSJayamohan Kallickal 30446733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 30456733b39aSJayamohan Kallickal 30466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 30476733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 30486733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 30496733b39aSJayamohan Kallickal 30506733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 30516733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 30526733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 30536733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 30546733b39aSJayamohan Kallickal 30556733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 30566733b39aSJayamohan Kallickal return 0; 30576733b39aSJayamohan Kallickal } 30586733b39aSJayamohan Kallickal 30596733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 30606733b39aSJayamohan Kallickal { 30616733b39aSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task, *io_task = task->dd_data; 30626733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 30636733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 30646733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 30656733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 30666733b39aSJayamohan Kallickal unsigned int doorbell = 0; 30676733b39aSJayamohan Kallickal struct iscsi_task *aborted_task; 30686733b39aSJayamohan Kallickal 30696733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 30706733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 30716733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 30726733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 30736733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 30746733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 30756733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 30766733b39aSJayamohan Kallickal 30776733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 30786733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 30796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, TGT_DM_CMD); 30806733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 30816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 30826733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 30836733b39aSJayamohan Kallickal break; 30846733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 30856733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD); 30866733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 30876733b39aSJayamohan Kallickal break; 30886733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 30896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD); 30906733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 30916733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 30926733b39aSJayamohan Kallickal break; 30936733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 30946733b39aSJayamohan Kallickal aborted_task = iscsi_itt_to_task(conn, 30956733b39aSJayamohan Kallickal ((struct iscsi_tm *)task->hdr)->rtt); 30966733b39aSJayamohan Kallickal if (!aborted_task) 30976733b39aSJayamohan Kallickal return 0; 30986733b39aSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 30996733b39aSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) 31006733b39aSJayamohan Kallickal return 0; 31016733b39aSJayamohan Kallickal 31026733b39aSJayamohan Kallickal mgmt_invalidate_icds(phba, 31036733b39aSJayamohan Kallickal aborted_io_task->psgl_handle->sgl_index, 31046733b39aSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 31056733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_TMF_CMD); 31066733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 31076733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 31086733b39aSJayamohan Kallickal break; 31096733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 31106733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 31116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 31126733b39aSJayamohan Kallickal HWH_TYPE_LOGOUT); 31136733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 31146733b39aSJayamohan Kallickal break; 31156733b39aSJayamohan Kallickal 31166733b39aSJayamohan Kallickal default: 31176733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported \n", 31186733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 31196733b39aSJayamohan Kallickal return -EINVAL; 31206733b39aSJayamohan Kallickal } 31216733b39aSJayamohan Kallickal 31226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 31236733b39aSJayamohan Kallickal be32_to_cpu(task->data_count)); 31246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 31256733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 31266733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 31276733b39aSJayamohan Kallickal 31286733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 31296733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 31306733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 31316733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 31326733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 31336733b39aSJayamohan Kallickal return 0; 31346733b39aSJayamohan Kallickal } 31356733b39aSJayamohan Kallickal 31366733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 31376733b39aSJayamohan Kallickal { 31386733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 31396733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 31406733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 31416733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 31426733b39aSJayamohan Kallickal struct scatterlist *sg; 31436733b39aSJayamohan Kallickal int num_sg; 31446733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 31456733b39aSJayamohan Kallickal 31466733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "\n cid=%d In beiscsi_task_xmit task=%p conn=%p \t" 31476733b39aSJayamohan Kallickal "beiscsi_conn=%p \n", beiscsi_conn->beiscsi_conn_cid, 31486733b39aSJayamohan Kallickal task, conn, beiscsi_conn); 31496733b39aSJayamohan Kallickal if (!sc) 31506733b39aSJayamohan Kallickal return beiscsi_mtask(task); 31516733b39aSJayamohan Kallickal 31526733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 31536733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 31546733b39aSJayamohan Kallickal if (num_sg < 0) { 31556733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n") 31566733b39aSJayamohan Kallickal return num_sg; 31576733b39aSJayamohan Kallickal } 31586733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "xferlen=0x%08x scmd=%p num_sg=%d sernum=%lu\n", 31596733b39aSJayamohan Kallickal (scsi_bufflen(sc)), sc, num_sg, sc->serial_number); 31606733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 31616733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 31626733b39aSJayamohan Kallickal if (sc->sc_data_direction == DMA_TO_DEVICE) { 31636733b39aSJayamohan Kallickal writedir = 1; 31646733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x \n", 31656733b39aSJayamohan Kallickal task->imm_count); 31666733b39aSJayamohan Kallickal } else 31676733b39aSJayamohan Kallickal writedir = 0; 31686733b39aSJayamohan Kallickal return beiscsi_iotask(task, sg, num_sg, xferlen, writedir); 31696733b39aSJayamohan Kallickal } 31706733b39aSJayamohan Kallickal 31716733b39aSJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 31726733b39aSJayamohan Kallickal { 31736733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 31746733b39aSJayamohan Kallickal 31756733b39aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev); 31766733b39aSJayamohan Kallickal if (!phba) { 31776733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba \n"); 31786733b39aSJayamohan Kallickal return; 31796733b39aSJayamohan Kallickal } 31806733b39aSJayamohan Kallickal 31816733b39aSJayamohan Kallickal hwi_disable_intr(phba); 31826733b39aSJayamohan Kallickal if (phba->pcidev->irq) 31836733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 31846733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 31856733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 31866733b39aSJayamohan Kallickal blk_iopoll_disable(&phba->iopoll); 31876733b39aSJayamohan Kallickal 31886733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 31896733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 31906733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 31916733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 31926733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 31936733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 31946733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 31956733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 31966733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 31976733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 31986733b39aSJayamohan Kallickal } 31996733b39aSJayamohan Kallickal 32006733b39aSJayamohan Kallickal static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev, 32016733b39aSJayamohan Kallickal const struct pci_device_id *id) 32026733b39aSJayamohan Kallickal { 32036733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 32046733b39aSJayamohan Kallickal int ret; 32056733b39aSJayamohan Kallickal 32066733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 32076733b39aSJayamohan Kallickal if (ret < 0) { 32086733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 32096733b39aSJayamohan Kallickal "Failed to enable pci device \n"); 32106733b39aSJayamohan Kallickal return ret; 32116733b39aSJayamohan Kallickal } 32126733b39aSJayamohan Kallickal 32136733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 32146733b39aSJayamohan Kallickal if (!phba) { 32156733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_dev_probe-" 32166733b39aSJayamohan Kallickal " Failed in beiscsi_hba_alloc \n"); 32176733b39aSJayamohan Kallickal goto disable_pci; 32186733b39aSJayamohan Kallickal } 32196733b39aSJayamohan Kallickal 32206733b39aSJayamohan Kallickal pci_set_drvdata(pcidev, phba); 32216733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 32226733b39aSJayamohan Kallickal if (ret) { 32236733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 32246733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 32256733b39aSJayamohan Kallickal goto hba_free; 32266733b39aSJayamohan Kallickal } 32276733b39aSJayamohan Kallickal 32286733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 32296733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 32306733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 32316733b39aSJayamohan Kallickal beiscsi_get_params(phba); 32326733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 32336733b39aSJayamohan Kallickal if (ret < 0) { 32346733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 32356733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 32366733b39aSJayamohan Kallickal goto free_port; 32376733b39aSJayamohan Kallickal } 32386733b39aSJayamohan Kallickal 32396733b39aSJayamohan Kallickal snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u", 32406733b39aSJayamohan Kallickal phba->shost->host_no); 32416733b39aSJayamohan Kallickal phba->wq = create_singlethread_workqueue(phba->wq_name); 32426733b39aSJayamohan Kallickal if (!phba->wq) { 32436733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 32446733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 32456733b39aSJayamohan Kallickal goto free_twq; 32466733b39aSJayamohan Kallickal } 32476733b39aSJayamohan Kallickal 32486733b39aSJayamohan Kallickal INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs); 32496733b39aSJayamohan Kallickal 32506733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 32516733b39aSJayamohan Kallickal blk_iopoll_init(&phba->iopoll, be_iopoll_budget, be_iopoll); 32526733b39aSJayamohan Kallickal blk_iopoll_enable(&phba->iopoll); 32536733b39aSJayamohan Kallickal } 32546733b39aSJayamohan Kallickal 32556733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 32566733b39aSJayamohan Kallickal if (ret < 0) { 32576733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 32586733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 32596733b39aSJayamohan Kallickal goto free_blkenbld; 32606733b39aSJayamohan Kallickal } 32616733b39aSJayamohan Kallickal ret = hwi_enable_intr(phba); 32626733b39aSJayamohan Kallickal if (ret < 0) { 32636733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 32646733b39aSJayamohan Kallickal "Failed to hwi_enable_intr\n"); 32656733b39aSJayamohan Kallickal goto free_ctrlr; 32666733b39aSJayamohan Kallickal } 32676733b39aSJayamohan Kallickal 32686733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED \n\n\n"); 32696733b39aSJayamohan Kallickal return 0; 32706733b39aSJayamohan Kallickal 32716733b39aSJayamohan Kallickal free_ctrlr: 32726733b39aSJayamohan Kallickal if (phba->pcidev->irq) 32736733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 32746733b39aSJayamohan Kallickal free_blkenbld: 32756733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 32766733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 32776733b39aSJayamohan Kallickal blk_iopoll_disable(&phba->iopoll); 32786733b39aSJayamohan Kallickal free_twq: 32796733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 32806733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 32816733b39aSJayamohan Kallickal free_port: 32826733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 32836733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 32846733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 32856733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 32866733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 32876733b39aSJayamohan Kallickal hba_free: 32886733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 32896733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 32906733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 32916733b39aSJayamohan Kallickal disable_pci: 32926733b39aSJayamohan Kallickal pci_disable_device(pcidev); 32936733b39aSJayamohan Kallickal return ret; 32946733b39aSJayamohan Kallickal } 32956733b39aSJayamohan Kallickal 32966733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 32976733b39aSJayamohan Kallickal .owner = THIS_MODULE, 32986733b39aSJayamohan Kallickal .name = DRV_NAME, 32996733b39aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | 33006733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 33016733b39aSJayamohan Kallickal .param_mask = ISCSI_MAX_RECV_DLENGTH | 33026733b39aSJayamohan Kallickal ISCSI_MAX_XMIT_DLENGTH | 33036733b39aSJayamohan Kallickal ISCSI_HDRDGST_EN | 33046733b39aSJayamohan Kallickal ISCSI_DATADGST_EN | 33056733b39aSJayamohan Kallickal ISCSI_INITIAL_R2T_EN | 33066733b39aSJayamohan Kallickal ISCSI_MAX_R2T | 33076733b39aSJayamohan Kallickal ISCSI_IMM_DATA_EN | 33086733b39aSJayamohan Kallickal ISCSI_FIRST_BURST | 33096733b39aSJayamohan Kallickal ISCSI_MAX_BURST | 33106733b39aSJayamohan Kallickal ISCSI_PDU_INORDER_EN | 33116733b39aSJayamohan Kallickal ISCSI_DATASEQ_INORDER_EN | 33126733b39aSJayamohan Kallickal ISCSI_ERL | 33136733b39aSJayamohan Kallickal ISCSI_CONN_PORT | 33146733b39aSJayamohan Kallickal ISCSI_CONN_ADDRESS | 33156733b39aSJayamohan Kallickal ISCSI_EXP_STATSN | 33166733b39aSJayamohan Kallickal ISCSI_PERSISTENT_PORT | 33176733b39aSJayamohan Kallickal ISCSI_PERSISTENT_ADDRESS | 33186733b39aSJayamohan Kallickal ISCSI_TARGET_NAME | ISCSI_TPGT | 33196733b39aSJayamohan Kallickal ISCSI_USERNAME | ISCSI_PASSWORD | 33206733b39aSJayamohan Kallickal ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN | 33216733b39aSJayamohan Kallickal ISCSI_FAST_ABORT | ISCSI_ABORT_TMO | 33226733b39aSJayamohan Kallickal ISCSI_LU_RESET_TMO | 33236733b39aSJayamohan Kallickal ISCSI_PING_TMO | ISCSI_RECV_TMO | 33246733b39aSJayamohan Kallickal ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME, 33256733b39aSJayamohan Kallickal .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS | 33266733b39aSJayamohan Kallickal ISCSI_HOST_INITIATOR_NAME, 33276733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 33286733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 33296733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 33306733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 33316733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 33326733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 33336733b39aSJayamohan Kallickal .get_conn_param = beiscsi_conn_get_param, 33346733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 33356733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 33366733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 33376733b39aSJayamohan Kallickal .stop_conn = beiscsi_conn_stop, 33386733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 33396733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 33406733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 33416733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 33426733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 33436733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 33446733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 33456733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 33466733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 33476733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 33486733b39aSJayamohan Kallickal }; 33496733b39aSJayamohan Kallickal 33506733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 33516733b39aSJayamohan Kallickal .name = DRV_NAME, 33526733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 33536733b39aSJayamohan Kallickal .remove = beiscsi_remove, 33546733b39aSJayamohan Kallickal .id_table = beiscsi_pci_id_table 33556733b39aSJayamohan Kallickal }; 33566733b39aSJayamohan Kallickal 33576733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 33586733b39aSJayamohan Kallickal { 33596733b39aSJayamohan Kallickal int ret; 33606733b39aSJayamohan Kallickal 33616733b39aSJayamohan Kallickal beiscsi_scsi_transport = 33626733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 33636733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 33646733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 33656733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register beiscsi" 33666733b39aSJayamohan Kallickal "transport.\n"); 33676733b39aSJayamohan Kallickal ret = -ENOMEM; 33686733b39aSJayamohan Kallickal } 33696733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p \n", 33706733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 33716733b39aSJayamohan Kallickal 33726733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 33736733b39aSJayamohan Kallickal if (ret) { 33746733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 33756733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register" 33766733b39aSJayamohan Kallickal "beiscsi pci driver.\n"); 33776733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 33786733b39aSJayamohan Kallickal } 33796733b39aSJayamohan Kallickal return 0; 33806733b39aSJayamohan Kallickal 33816733b39aSJayamohan Kallickal unregister_iscsi_transport: 33826733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 33836733b39aSJayamohan Kallickal return ret; 33846733b39aSJayamohan Kallickal } 33856733b39aSJayamohan Kallickal 33866733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 33876733b39aSJayamohan Kallickal { 33886733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 33896733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 33906733b39aSJayamohan Kallickal } 33916733b39aSJayamohan Kallickal 33926733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 33936733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 3394